• Limited-stop service Monday to Saturday except overnights, local service overnights and Sunday alternate daytime trips.

• Terminus for local service when Limited-stop service operates and Sunday alternate daytime trips.

• Terminus for early morning and late evening service

• Dyker Heights served by select weekday rush hour trips and alternating Saturday afternoon trips.

• Terminus for early morning and late evening service.

• Operates via Glendale and Ridgewood, Queens

• Terminal for alternating rush hour trips.

• Operates nonstop on Conduit Avenue between Linden Boulevard/79th Street and Lefferts Boulevard.

• Select weekday morning Bay Ridge-bound trips begin at 37th Street or 60th Street with some of these terminating at 86th Street/5th Avenue.

• Both terminals alternately served during rush hours and weekday evenings.

• Weekday and Sunday afternoon terminal, weekday evening rush terminal

• Operates via Sunnyside, Queens.
• Travels between Brooklyn and Queens via the Kosciuszko Bridge.

• No late evening service.
• Travels between Brooklyn and Queens via the Pulaski Bridge

• All trips: DeKalb Avenue/Lafayette Avenue,
• Cornelia Street trips: Seneca Avenue
• Metropolitan Avenue trips: Stanhope Street

• Travels between Brooklyn and Manhattan via the Williamsburg Bridge.

• Limited-stop service operates weekdays to Bergen Beach, all times except nights to Kings Plaza
• Local service alternates between each terminal
• Select Downtown-bound buses terminate at Atlantic Avenue or Eastern Parkway during rush hours.

• Bus terminates inside fare control at Rockaway Parkway station.

• Rogers Avenue (northbound SBS)
• Bedford Avenue, New York Avenue (northbound local)

• SBS trips alternate between both sets of terminals
• No overnight SBS service
• Local service uses Flushing Avenue terminal except overnights
• Select local and SBS trips originate/terminate at Nostrand Avenue and Avenue X or Emmons Avenue
• Select Knapp Street-bound local trips originate at Nostrand Avenue and Empire Boulevard or Eastern Parkway

• Local service, operates all times
• Extra rush hour service provided between Avenue H and Eastern Parkway.
• SBS service, operates except overnights
• SBS service, weekday rush hours only

• Local service

• Limited-stop service, operates AM rush hours only in the southbound direction

• Fare-free service for six to 12 months started on September 24, 2023,^[42] and ended August 31, 2024.^[43]
• Select Canarsie-bound buses terminate at the Rockaway Parkway Station ( train) during rush hours.

• Free additional transfer to B62 in Downtown Brooklyn.

• Travels between Brooklyn and Queens via the Pulaski Bridge.
• Free additional transfer to B61 in Downtown Brooklyn.

• B67 terminal, evenings and weekends
• B69 terminal, all service

• B67 terminal, rush hours and middays (via Brooklyn Navy Yard)

• Clockwise loop in Sea Gate.

• Served by SBS weekdays, terminal for alternate trips on Saturday afternoons and all day on Sundays.

• Local service only
• Alternate Coney Island-bound AM rush hour trips originate at Rockaway Parkway ( train)

• No evening and night service

• No service from 2 hours prior to sundown on Friday until nightfall Saturday due to Shabbat.
• Operates nonstop via Fort Hamilton Parkway, Prospect Expressway, and Brooklyn-Queens Expressway

• Sheepshead Bay area bus began in April 1919 by Plum Beach Auto Stage.
• 86th Street Line streetcar until August 12, 1948.
• 86th Street portion and Bay Ridge Avenue portion of B1 (west of 25th Avenue) were B34 until 1978.
• Service via Brighton Beach was B21 until 1978.
• Service originally ran via the Sheepshead Bay (BMT Brighton Line) station. Service was rerouted via Brighton Beach and Coney Island Hospital in 1978, absorbing the B21 and B34.
• Western end (13th Avenue and 86th Street) swapped with the B64 in 2010.
• Current routing originally proposed in the 1970s as B86.

• Began 1922 by Kings Coach Company.
• Bus service temporarily served Mill Basin, ending on October 28, 1979 to serve former Pioneer Bus Company riders. It was discontinued once that route was taken over by Command Bus Company.^[87]
• Overnight service discontinued in 1995 due to budget crisis.
• Weekend service discontinued in June 2010 due to a second budget crisis and restored in mid-2012.

• Began 1922 by Kings Coach Company.
• Extended along 25th Avenue in 1978.
• Service via East 73rd and 74th Streets in Bergen Beach discontinued in June 2010.

• Began September 28, 1931 by Brooklyn-Manhattan Transit.
• Eastern terminus was Stillwell Avenue and 86th Street until 1978.
• Emmons Avenue portion was B21 until 1978.
• Extended to Sheepshead Bay in 1978, via Coney Island Hospital and along B36 and B21 routes.
• Off-peak service east of Coney Island Hospital discontinued on June 27, 2010, restored in January 2013.
• Service on Neptune Avenue discontinued in 2010, restored January 6, 2013.^[88]

• Bay Parkway bus began August 24, 1931 by Brooklyn-Manhattan Transit.
• Cozine Avenue service was new route in 1968 as B84.
• On May 10, 1987, as a part of a series of changes to B6 and B11 bus service, with the shortening of the B11 to Brooklyn College, a third-leg transfer would be introduced between the B6 and B11 to ensure that riders would not have to pay a second fare. In addition, B6 service was rerouted to Glenwood Road from Flatlands Avenue between East 103rd Street and Rockaway Parkway, and eastbound service was rerouted to stay on Avenue H and Ralph Avenue instead of East 56th Street and Farragut Road. Weekday and Saturday service operating only between Cozine Avenue and Ashford Street and Rockaway Parkway station was increased.^[89]
• Original eastern terminus was Ashford Street; extended along Ashford Street in 1989.
• In May 2000, the MTA announced a plan to implement limited-stop service along the route on weekdays westbound between 7 a.m. and 8 p.m. and eastbound between 6 a.m. and 7 p.m.. The change was expected to save $95,000 a year. Limited-stop buses would skip local stops between Rockaway Parkway station and Coney Island Avenue, and make all stops to the east and to the west. While limited-stop service would operate, about every other B6 would run limited. Local bus service would mainly operate between Rockaway Parkway station and Coney Island Avenue.^[90] The service began on September 11, 2000, saving up to five minutes in travel time.^[91]

• Began June 29, 1930 by Brooklyn-Manhattan Transit.
• On September 13, 1999, service was extended along Kings Highway from East 16th Street to Coney Island Avenue.^[92] Partially as a result of the extension, ridership increased by 15.4 percent between September 1999 and May 2000 over the previous year, compared to 4.5 percent for buses in Brooklyn overall.^[93]
• In February 2001, the MTA announced a plan to extend weekend service between 8 a.m. to 8 p.m. from Ryder Street to Coney Island. The extension would cost about $120,000, and was to be implemented in June 2001.^[93]
• On November 10, 2005, to improve traffic flow on Kings Highway, bus stops at Linden Boulevard and Remsen Avenue were moved to the service road from the main road.^[94]
• Overnight service discontinued on June 27, 2010.

• Began on October 22, 1925 by Queens Bus Lines.
• Original eastern terminus was the Brooklyn Terminal Market.
• On January 15, 1950, service was extended by 0.5 miles (0.80 km) from Ditmas Avenue and Remsen Avenue to East 83rd Street and Foster Avenue to serve the Brooklyn Terminal Market.^[95]
• Most trips were rerouted to Brookdale Hospital in the 1990s.
• Brooklyn Terminal Market service was discontinued on June 23, 1996.^[96]
• Daytime service between Bay Ridge and Veterans Administration Hospital discontinued in 2010 but restored on June 29, 2014.^[97]
• Service was extended to Bay Ridge-95th Street on June 29, 2014.

• Began on October 28, 1931 by Brooklyn-Manhattan Transit.
• B9 service, along with B46 service, was extended to Jacob Riis Park in Rockaway, Queens, starting on June 14, 1980. Service would run every 30 minutes between 8 a.m. and 7 p.m., and when the service was announced on June 10, 1980, it was expected that service would be increased as ridership increased. The extensions in service were made possible via federal funding from the Gateway National Recreational Area.^{[98][99][100]}

• Began on September 21, 1931 by Brooklyn-Manhattan Transit.
• Original eastern terminus was 18th Avenue; Extended to Canarsie–Rockaway Parkway station on November 12, 1978 via the B6 route.
• On May 10, 1987, as a part of a series of changes to B6 and B11 bus service, the route was shortened to the current terminus at Brooklyn College. As part of the change, late night service was extended from 18th Avenue to Brooklyn College. A third-leg transfer would be introduced between the B6 and B11 to ensure that riders would not have to pay a second fare.^[89]
• Overnight service discontinued on September 10, 1995 due to a budget crisis.

• Began November 23, 1931 by Brooklyn-Manhattan Transit.
• Service originally ran to City Line (Sheridan Avenue and Liberty Avenue)
• On June 11, 1954, a public hearing was held on a proposed modification to the route to provide more convenient service to the Kings County Hospital Center from Bedford-Stuyvesant.^[101]
• The route was cut back to Broadway Junction in July 2010.

• Began on October 25, 1921 by Independent Buses.
• Original route ran on Crescent Street from Jamaica Avenue to Spring Creek Basin.
• Merged with the (first) B19 route on May 1, 1938, extended to Ridgewood Terminal some time later, probably in 1947.
• Merged with most of the B18 route on September 8, 2002. B18 service along Cypress Avenue between the Ridgewood Terminal and Cypress Hills was discontinued. In Williamsburg, the B13 ran on Bushwick Avenue instead of Morgan and Porter Avenues. In Spring Creek, the B13 ran on Eldert Lane instead of Crescent Street between Linden Boulevard and Stanley Avenue.^[102] Most of the B18 merge/extension was cut back to Wyckoff Heights Hospital in 2010.
• Extended to new bus terminal at Gateway Center North on August 31, 2014.^[103]

• Began in August 1925 by Eastern Parkway, Brownsville and East New York Transit Relief Association.
• Service was extended along Eldert Lane and Stanley Avenue to the Spring Creek Post Office on July 2, 2006.^[104]

• Sumner Avenue Line streetcar until July 20, 1947.
• New Lots Avenue Line streetcar until June 28, 1941.
• Became route B10 before being renumbered to B15 in 1993 when extended to JFK Airport to avoid confusion with Q10.
• On February 12, 2006, the bus stop at Federal Circle was removed, and service was rerouted to Lefferts Boulevard AirTrain Station B, to improve pedestrian and traffic safety.^[105]
• On May 30, 2012 service was rerouted from Terminal 4 to Terminal 5 due to construction.
• Service to Brooklyn General Mail Facility discontinued in September 2013.^[106] Trips making short turns now terminate at Drew Street and Linden Boulevard.
• All JFK service was cut back from Terminal 5 to Lefferts Blvd Airtrain Station on March 27, 2022, with service within JFK replaced by the Q3 and JFK AirTrain.

• Began on October 28, 1931 by Brooklyn-Manhattan Transit.
• In September 1994, the route was extended 0.6 miles (0.97 km) north via Ocean Avenue to Flatbush Avenue and Empire Boulevard to provide direct connections with the B41, B47 and B48. This change also eliminated the need for the route to turnaround using Saint Paul's Place, which is a narrow one-way street that is often blocked due to congestion and extensive road repairs, which resulted in unreliable service. Northbound buses had turned north on St. Paul's Place and east on Parkside Avenue to the terminal on Ocean Avenue. The extension cost $140,000 annually, of which it was offset by $70,000 to $85,000 due to expected increases in ridership. This was funded as part of the 1994 Fare Deal/Ridership Growth Initiatives Program.^{[107]: D.14–D.20}
• Overnight service discontinued in 1995 due to budget crisis.

• Began on August 17, 1931 by Brooklyn-Manhattan Transit.
• On January 12, 1998, service was increased to begin earlier and end later.^[108]

• Began on November 30, 1931 by Brooklyn-Manhattan Transit.
• In May 1936, service was extended along Pennsylvania Avenue to Linden Boulevard.^[109]
• Operated via Linden Boulevard between Pennsylvania Avenue and Eldert Lane until 1978.
• Rerouted in 1978 from Linden Boulevard to serve the Boulevard and Linden Houses via Wortman Avenue between Pennsylvania Avenue and Ashford Street.

• Calvary Cemetery Line (Greenpoint Avenue) streetcar until January 26, 1930.
• Meeker and Marcy Avenues Line streetcar until April 17, 1939.
• Weekend service discontinued in June 2010, restored January 6, 2013.^[88]

• Fulton Street Line streetcar until August 10, 1941.
• In September 1996, B25 service was made 24/7 to make up for the truncation of B41 service to Tillary Street. B25 service had run 24 hours on weekdays and Saturday, but not Sundays when the first trip departed at 7:40 a.m.^[110]
• Extended to Fulton Landing in 1998.^[111]
• On January 12, 1998, westbound service was rerouted along Front Street, Main Street, Water Street and Fulton Street between 7 a.m. and 7 p.m. on weekdays to stop at the corner of Water Street and Main Street.^[108]

• Putnam Avenue Line streetcar until February 5, 1950.^[112]
• In January 1995, the B26 was extended from Adams Street and Johnson Street to a new terminal at Cadman Plaza West and Tilllary Street to eliminate operational problems.^[113]

• Began in 1922 by Kings Coach Company.
• Former western terminus was Avenue U (BMT Brighton Line) station.
• Rerouted to the B2 western terminus (Kings Highway (BMT Brighton Line)) station in 1989. A public hearing was held on June 22, 1989. The change was made to provide a direct connection to Kings Highway, which had more subway service as it was an express stop. The extension also allowed for connections to the B5, B7 and B50. Two alternatives were considered to extend the route. The first would have extended it north along Gerritsen Avenue to Avenue R and then follow the B2 to Kings Highway. The second alternative would have kept the route along Avenue U to Ocean Avenue before turning north to Avenue R and then running along the B2 route. The first alternative was chosen as it was the more direct route, had fewer bus transfer impacts, and provided additional service along Gerritsen Avenue.^[114]
• Overnight service discontinued in 2010.

• New route started on September 8, 2013.^[115]

• Church Avenue Line streetcar until October 31, 1956.
• Limited-stop service implemented in June 2005.

• Sea Gate Line streetcar until December 1, 1946.
• Originally ran in Sea Gate (via a separate bus) until 1978.
• Originally ran via Neptune Avenue. Service was rerouted via Coney Island Hospital in 1978.

• Traveled on Livingston Street, Third Avenue
• Third Avenue Line streetcar until March 1, 1942.
• In January 1995, the B37 began running via Livingston Street in Downtown Brooklyn instead of via the Fulton Mall due to the high accident rate on that street and due to the difficult turns required to get to Fulton Mall.^[116]
• On November 8, 2008, Bay Ridge-bound service was rerouted from Third Avenue to Fourth Avenue between Flatbush Avenue and Bergen Street.^[117]
• Discontinued on June 27, 2010 due to a budget crisis. Restored on June 29, 2014.^[97]
• The route between Court Street and Livingston Street in Downtown Brooklyn (original northern terminus) and Atlantic Avenue-Barclays Center was not restored.^[97]

• DeKalb Avenue Line streetcar until January 30, 1949.
• Current Metropolitan Avenue branch used to terminate at Stanhope Street and Onderdonk Avenue.
• Limited-stop service was added on April 7, 2008.^[118][117]

• Williamsburg Bridge Local streetcar until December 4, 1948.^[119]
• For five months beginning on May 1, 1999, no fare was collected due to the Williamsburg Bridge subway reconstruction.^[120]
• Discontinued on June 27, 2010 due to a budget crisis.
• Daytime service restored on January 6, 2013.^[88]

• This route was the Flatbush Avenue Line streetcar until March 5, 1951.
• Former northern terminus was Furman Street and Cadman Plaza West
• Limited-stop service began on September 14, 1992.^[121][122]
• In September 1996, all trips on the route were slated to be cut back to the alternate terminal at Tillary Street and Cadman Plaza West from Old Fulton Street at Fulton Landing as part of a reconfiguration of service in Downtown Brooklyn.^[123] The change took effect on March 30, 1997.^[124] This 0.6 miles (0.97 km) section was eliminated as it duplicated B25 service, because this section was underutilized, with an average of 1.5 passengers per trip, and because the shorter route would increase the B41's reliability. B25 service was made 24/7 to make up for the loss of Sunday service to Fulton Landing.^[123]
• In February 1999, the MTA announced plans to implement Sunday limited-stop service on the B41, B44, and B46 due to increased ridership. The $76,000 annual increase in costs was expected to be offset by increased ridership. The change was expected to be implemented in May 1999.^[125]

• Rockaway Parkway Line streetcar until April 29, 1951.
• Northern terminus (bus loop) is inside subway fare control.

• Tompkins Avenue Line streetcar until August 24, 1947.
• Graham Avenue Line streetcar until December 11, 1949.^[126]
• Combined from B47 and B62 on September 10, 1995 due to a budget crisis.^[127][128]
• In March 2000, plans were announced to modify the terminal loops of the B43 and B48 to serve the Lincoln Road entrance to the Prospect Park subway station to eliminate a two-block walk and allow dispatchers and bus operators to use the new dispatcher office and restrooms at the subway station. At the time, buses had terminated at Washington Avenue and Empire Boulevard; the southbound stop was on Washington Avenue, and buses continued via Flatbush Avenue to head back into service on Empire Boulevard. With the change, southbound buses would turn south onto Flatbush Avenue, and west on Lincoln Road to the new terminal, and northbound buses would continue west on Lincoln Road, turn north on Ocean Avenue, and turn east onto Empire Boulevard. The change was estimated to cost $37,000 a year, and was to be implemented in June 2000.^[129]

• Nostrand Avenue Line streetcar until April 1, 1951.
• Limited-stop service was added to the route on September 11, 1995,^[128][125] operating on weekdays between 6:30 a.m. and 9 p.m. and on Saturday between 7 a.m. and 7 p.m.^[130]
• In February 1999, the MTA announced plans to implement Sunday limited-stop service on the B41, B44, and B46 due to increased ridership. The $76,000 annual increase in costs was expected to be offset by increased ridership. The change was expected to be implemented in May 1999.^[125]
• First Select Bus Service bus rapid transit route in Brooklyn started on November 17, 2013.^[131][132]

• St. Johns Place Line streetcar until August 24, 1947.

• Utica and Reid Avenues Line streetcar until March 18, 1951.
• B46 service, along with B9 service, was extended to Jacob Riis Park in Queens during the summer season, starting on June 14, 1980. Service would run every 30 minutes between 8 a.m. and 7 p.m. , and when the service was announced on June 10, 1980, it was expected that service would be increased as ridership increased. The extensions in service were made possible via federal funding from the Gateway National Recreational Area.^{[98][99][100]}
• Limited-stop service was implemented on weekdays September 12, 1994.^[125]
• Saturday limited-stop service was added on September 16, 1995,^[128][125] operating between 8 a.m. and 8 p.m.^[133]
• In February 1999, the MTA announced plans to implement Sunday limited-stop service on the B41, B44, and B46 due to increased ridership. The $76,000 annual increase in costs was expected to be offset by increased ridership. The change was expected to be implemented in May 1999.^[125]
• Busiest bus route in Brooklyn; third busiest route in New York City.^{[134][135][136][137]}
• Second Select Bus Service bus rapid transit route in Brooklyn started on July 3, 2016. Local service was extended full-time to Williamsburg Bridge Plaza.

• Ralph Avenue Line streetcar until November 1, 1943
• Ralph and Rockaway Avenues Line streetcar until May 27, 1951.
• Created as a result of a merge of the B40 and B78 on September 8, 2002.^[138]
• Former route B40 service east of Ralph Avenue and north of Woodhull Hospital discontinued.^[102]

• Franklin Avenue Line streetcar until October 28, 1945.
• Lorimer Street Line streetcar until December 14, 1947.
• In March 2000, plans were announced to modify the terminal loops of the B43 and B48 to serve the Lincoln Road entrance to the Prospect Park subway station to eliminate a two-block walk and allow dispatchers and bus operators to use the new dispatcher office and restrooms at the subway station. At the time, buses had terminated at Washington Avenue and Empire Boulevard; the southbound stop was on Washington Avenue, and buses continued via Flatbush Avenue to head back into service on Empire Boulevard. With the change, southbound buses would turn south onto Flatbush Avenue, and west on Lincoln Road to the new terminal, and northbound buses would continue west on Lincoln Road, turn north on Ocean Avenue, and turn east onto Empire Boulevard. The change was estimated to cost $37,000 a year, and was to be implemented in June 2000.^[129]
• Route originally continued to Lefferts Gardens; service south of Fulton Street discontinued in July 2010, restored on January 6, 2013.^[88]

• Ocean Avenue Line streetcar until April 29, 1951.
• Rerouted to serve the Sheepshead Bay subway station on November 12, 1978 (when B1 was rerouted via Brighton Beach).^[139]
• In April 2002, plans were announced to reroute northbound B49 service off of Sheepshead Bay Road and East 15th Street, and onto Shore Parkway Service Road, East 16th Street, Voorhies Avenue, East 14th Street, and Avenue Z, to reduce the number of crashes on the bus routes. 15 crashes involving the B49 occurred in 1999, eight occurred in 2000, and seven in 2001.^[140]
• Southbound Limited-Stop service started on September 5, 2006.^[104]

• Greene and Gates Avenues Line streetcar until October 5, 1941.
• The B52 was rerouted to run two-way on Gates Avenue between Spring 1991 and October 1993 to accommodate the reconstruction of Greene Avenue and Quincy Street, which was subsequently deferred. The B52 returned to running eastbound on Quincy Street and Linden Street and running westbound on Gates Avenue. The local community then requested reinstating two-way service via Gates Avenue because the street was wider, there was less congestion, and because there were greater housing development densities on that street. Brooklyn Community Boards 2, 3 and 4 supported the change, and a public hearing was held on June 16, 1994.^[141] The change went into effect in January 1995.^[142]

• Myrtle Avenue Line (surface) streetcar until July 17, 1949.
• On July 1, 2007, the travel path of the B54's terminal loop in Downtown Brooklyn was reversed to improve traffic flow and to provide faster service to the Jay Street subway station.^[143]

• Flushing Avenue Line streetcar until November 21, 1948.
• Court Street Line streetcar until July 17, 1949.
• Smith Street Line (surface) streetcar until February 11, 1951.
• In September 1996, B57 service was slated to be extended 0.7 miles (1.1 km) west to the center of Downtown Brooklyn at Smith Street at Livingston Street via Jay Street from its previous terminal at Sands Street and Jay Street. The extension was intended to encourage ridership growth by providing direct access to Downtown Brooklyn, to provide transfers to other routes and to create a common terminal with the B51, B57 and B65. In addition, the B57's route path was revised to loop around the Farragut House, running along York Street between Navy Street and Gold Street, to make up for the loss of the B61, which was rerouted.^[144] Service was extended to Fulton Mall on March 30, 1997.^[124]
• Extended along the Smith/Court Street sections of the B75 in 2010.
• Extended to Red Hook in January 2013 from Smith-9th Streets subway station.

• Wilson Avenue Line streetcar until May 27, 1951.

• Columbia Street and Van Brunt Street portion part of Crosstown Line (Brooklyn surface) streetcar until January 27, 1951.
• Lorraine and Ninth Street route begun August 27, 1936 by Brooklyn-Manhattan Transit.
• Originally ran between Red Hook and Long Island City, Queens.
• Extended to Queens Plaza in March 1994 from the base of the Pulaski Bridge as part of the MTA's Fare Deal program.^[145]
• In September 1996, the B61 was slated to be rerouted, eliminating the deviation it made along Sands Street, Gold Street, York Street and Navy Street to serve the Farragut Houses, instead running directly along Tillary Street. The change was to be done so buses could avoid traffic on Jay Street and Sands Street, which is the entrance to the Brooklyn-Queens Expressway and the Brooklyn Bridge and to enhance the route's growing use as an interborough route between Downtown Brooklyn and Long Island City. This change saved riders five minutes in each direction. B57 service was to be rerouted to maintain service to the Farragut Houses.^[146] On March 30, 1997, service was rerouted off of Jay Street and Sands Street and onto Gold Street and Tillary Street.^[147][124]
• On June 15, 2008, service was extended to the new IKEA store in Red Hook.^[117]
• Route north of Downtown Brooklyn was split off from original B61 route (now B62) on January 3, 2010.^[148]
• Extended along former B77 route and Ninth Street portion of B75 route in 2010.
• Second bus route in Brooklyn to receive MTA BusTime due to Culver subway line reconstruction project in 2012.^[149]

• Crosstown Line (Brooklyn surface) streetcar until January 27, 1951.
• Split off from original B61 route on January 3, 2010.^[148]

• Fifth Avenue Line (Brooklyn surface) streetcar until February 20, 1949.
• First bus route in New York City in February 2011 to test tracking real time arrival system called MTA BusTime.^[150]

• Bay Ridge Avenue Line streetcar until May 15, 1949.
• Bay Ridge Avenue and 86th Street portion of B1 were B34 until November 12, 1978.^[139]
• Western end (13th Avenue and 86th Street) swapped with B1 in July 2010.
• Southern terminus was originally Coney Island; Service was cut back to Bath Beach in July 2010, restored on January 6, 2013.^[88]

• Bergen Street Line streetcar until July 20, 1947.
• Rerouted from Cobble Hill to Downtown Brooklyn in the late 1990s.

• Seventh Avenue Line (Brooklyn surface) streetcar until February 11, 1951.
• Extended into South Williamsburg via the Brooklyn Navy Yard and Vinegar Hill on September 9, 2013.^[151]

• Coney Island Avenue Line streetcar until November 30, 1955.
• Service originally terminated at West 5th Street. Extended to Coney Island–Stillwell Avenue subway station in July 2001.^[152]

• Vanderbilt Avenue Line streetcar until August 20, 1950.
• Southern portion (south of Flatbush Avenue) originally ran via 8th Avenue and Prospect Park West in Park Slope and terminated at 19th Street.
  This portion was rerouted along the B67 route (7th Avenue) and extended to Kensington in July 2010.
• Weekend service discontinued in July 2010 and restored on January 6, 2013.^[88]

• Eighth Avenue Line (Brooklyn surface) streetcar until May 15, 1949.
• Rerouted from 7th Avenue to 3rd Avenue in Bay Ridge in July 2010 to replace B37 service.^[88]
• Rerouted back to 7th Avenue from 3rd Avenue in Bay Ridge on June 29, 2014 due to restored B37 service.^[97]

• Norton's Point Line streetcar until November 7, 1948.
• The span of evening service was extended on January 11, 1998.^[108]

• Western portion (B5; west of Flatbush Avenue) begun August 29, 1924 by Queens Bus Lines.
• Eastern portion (B50) introduced in 1975 from Starrett City to Canarsie–Rockaway Parkway; extended to Coney Island Avenue in Midwood on November 12, 1978.^[139][153]
• Combined from routes B5 and B50 on September 10, 1995 due to budget crisis.^[127][128]
• Original terminus was Cropsey Avenue and Canal Avenue. Extended to Coney Island on September 7, 2003.^[154]
• Rush Hour Limited-Stop Service added on September 13, 2010.^[155]
• Third Select Bus Service bus rapid transit route in Brooklyn started on October 1, 2018. Runs only on weekdays, service to Coney Island and on weekends is provided by the B82 local.

• New route, started on February 27, 1966 on a six-month trial basis.^[156]
• Original northern terminus was Livonia Avenue and Pennsylvania Avenue^[156]
• The route's original southern terminus was Cozine Avenue and Schenck Avenue .^[156]
• On November 13, 1966, the route was extended five blocks from Schenck Avenue and Cozine Avenue to Ashford Street and Cozine Avenue to serve the Boulevard Houses development.^[157]
• Rerouted along Van Siclen Avenue and into Spring Creek Towers in 1978.
• Extended to Gateway Mall via Pennsylvania Avenue and the Belt Parkway on November 18, 2007.^[158][159]
• Extended to new bus terminal at Gateway Center North on August 31, 2014.^[103]

• New route created on June 30, 2013.
• Services part of original B83 route in East New York between Jerome Street and Berriman Street.

• Began on February 3, 1960 by Pioneer Bus Company.^[160]
• Extended from Bassett Avenue to 56th Drive (then called McMullen Drive) in August 1960.^[161]
• Formerly operated by the Command Bus Company until MTA takeover in December 2005, then operated by MTA Bus Company.^[162]

• Began service June 2, 1986.^[163]
• Formerly operated by Command Bus Company.
• Former terminus at East 94th Street and Flatlands Avenue and requested trips to Cozine Avenue and Ashford Street.^[164]
• Formerly operated by the Command Bus Company until MTA takeover in December 2005, then operated by MTA Bus Company.

Saturday service was added in 2006.

• On November 8, 2008, Canarsie-bound service was rerouted from Third Avenue to Fourth Avenue between Flatbush Avenue and Bergen Street.^[117]
• Rerouted and extended to Williams Avenue on May 4, 2009 and Sunday service was added on September 6, 2009.
• Expanded service and extra trips between Brooklyn College and Canarsie was added on weekdays in 2009, Saturdays in 2010, and Sundays in 2012.
• Gowanus and Boerum Hill service was added on April 6, 2014.^[165]

• Eastern part of route truncated.
• Service straightened in Flatlands.

• Service straightened in Flatlands.
• Service added on Sunday to replace the B6 local and the B84.

• 50th Street (eastbound)/49th Street (westbound)
• Avenue J

• Bushwick Avenue
• Marcus Garvey Boulevard (eastbound)/Throop Avenue (westbound)
• East 98th Street, New Lots Avenue

• Western part of route extended to provide a connection to the Montrose Avenue station.
• JFK Airport branch discontinued, replaced by B55 SBS.

• Fort Hamilton Parkway
• 14th Avenue (northbound)/13th Avenue (southbound)
• Caton Avenue, Clarkson Avenue

• Eastern section rerouted to serve Kings County Hospital Center and Kingsbrook Jewish Medical Center.
• Sunset Park section rerouted to use wider streets.

• Northern section truncated.
• Southern section rerouted to avoid Wortman Avenue and Eldert Lane.
• Local service along Pennsylvania Avenue provided by B83.

• No changes to daytime routing except for stop spacing.
• Overnight route runs from the Franklin Avenue station instead of from Fulton Landing.

• Rerouted to avoid Putnam Avenue.
• Local service on Fulton Street provided by B25, except for local service overnight between Cadman Plaza and Franklin Avenue.

• Similar to existing nighttime service, but runs to Sunset Park during the day.
• B35 LTD service replaced by a new crosstown route, B55.

• Metropolitan Avenue branch discontinued.
• On remaining Seneca Avenue branch, only changes are to stop spacing.
• B38 LTD discontinued due to increased stop spacing.

• Northern end rerouted.
• Bergen Beach branch discontinued (replaced by B40).

• Northern end rerouted.
• Bergen Beach branch discontinued (replaced by B40).

• Kingston and Throop Avenues (northbound)/Albany Avenue and Marcus Garvey Boulevard (southbound)
• Graham Avenue, Manhattan Avenue

• Nostrand Avenue
• Rogers Avenue (northbound)

• Avenue Z, Nostrand Avenue
• Rogers Avenue (northbound)

• Ocean Avenue
• Classon Avenue (northbound)/Franklin Avenue (southbound)
• Flushing Avenue

• Northern end rerouted to serve Brooklyn Navy Yard.
• Southern end extended to Church Avenue to provide a transfer to a future wheelchair-accessible subway station.

• Nostrand Avenue (southbound)/New York Avenue (northbound)
• Ocean Avenue, Avenue Z, Brighton Beach Avenue

• Northern section rerouted to Nostrand/New York Avenues.
• Southern section rerouted to Coney Island to provide a transfer to a wheelchair-accessible subway station, replace the B68, and avoid sharp turns.

• Greenpoint Avenue, Franklin Street
• Kent Avenue (northbound)/Wythe Avenue (southbound)
• Broadway

• Flushing Avenue
• Bedford Avenue (northbound)/Driggs Avenue (southbound)
• Manhattan Avenue, Jackson Avenue, 21st Street, 27th Avenue

• Service extended to Astoria to provide local service for the Q69 bus.
• Rerouted through Brooklyn Navy Yard to replace the B67 bus.

• Northern end extended to serve Sunset Park.
• Southern end rerouted to replace the B82, which is being shortened.

• Atlantic Avenue
• Dean Street (eastbound)/Bergen Street (westbound)

• Western end rerouted to avoid narrow streets and sharp turns.
• Eastern end truncated to St. Marks Avenue.

• Cooper Street, Wilson Avenue
• Meserole Avenue and South 4th Street (northbound)/South 5th Street and Montrose Avenue (southbound)

• Northern end extended to replace the B48.
• Southern end truncated.

• Clockwise loop in Sea Gate.
• Only changes to existing route are to stop spacing.

• Service rerouted in Flatlands to follow B82 SBS.
• Southern end truncated.

• Alternating trips to Downtown Brooklyn discontinued, with all trips terminating at Flatbush Avenue.
• Eastern end extended to New Lots Avenue to provide a transfer to a future wheelchair-accessible subway station.

• Subway shuttle during reconstruction of Avenue U and Neck Road stations from 2008 to 2010.^[241] Ran solely in a.m. rush hours and only toward Quentin Road.

• Merged with B50 into B82 on September 10, 1995 due to budget crisis.

• Route still exists today; extended to JFK Airport in 1993.
• Route was renumbered to B15 to avoid confusion with the Q10.

• Began on November 13, 1929 by Brooklyn-Manhattan Transit Corporation.
• Discontinued between 1969 and 1977.^[242]
• Restored in September 1985.^[243]
• Became an extension of the B63, later the B51, and then it was discontinued on June 27, 2010.

• Began on November 30, 1931 by Brooklyn-Manhattan Transit.
• Extended from Ridgewood to Cypress Hills on September 1, 1947.
• Merged into an extended B13 on September 8, 2002 west of Myrtle Avenue (east of it was discontinued).^[102]

• Became northern part of the B13 on May 1, 1938.

• Discontinued in 1988.

• Replaced in 1978 with parts of the B1, B4, and B36.

• Route still exists. Relabeled and renumbered to Q24 on December 11, 1988.^[240][244]

• 16th Avenue Line streetcar until January 26, 1930 and Cortelyou Road Line streetcar until July 23, 1930.
• Streetcar known as "Avenue C Line"
• Discontinued on June 27, 2010 due to a budget crisis.^[245]

• Started on March 12, 1950, and ended February 1, 1955. Route may have started at Quincy Street and Broadway as a branch of the B22. Ran on Fulton Street from Alabama Avenue to Elderts Lane.^[246]

• Traveled on the same circular route as the B29, but going the opposite direction.
• Became part of the B24 by 1969.

• Brooklyn-Manhattan express bus route.

• Discontinued in 1944.

• Brooklyn-Manhattan express bus route.

• Originally a circular line, with the other direction being the B27 (second use).
• Southern part of the current B24.^[247]

• Brooklyn-Manhattan express bus route.

• Discontinued by 1969.

• Created prior from portions of B29 that were not merged into the B24.
• Discontinued on September 10, 1995 due to a budget crisis.

• Became part of the Q35 by 1969.

• Discontinued in 1993.

• Replaced by an extension of the B1 in 1978. Currently part of B1 and B64 routes.

• Renumbered from B73 by 1969.
• Sea Gate shuttle^[248]
• 1.4 miles (2.3 km)-long^[248]
• Weekday service operated from 6 a.m. to 8 p.m., with a frequency of 12 to 15 minutes, and weekend service operated from 10 a.m. to 8 p.m.. on a 12-minute headway^[248]
• This route was discontinued in 1988 due to low ridership. The route only averaged two passengers per trip. Its discontinuation affected 118 weekday passengers and 69 weekend daily passengers. A public hearing was held on October 17, 1988 so that the local community could respond to the route's proposed discontinuation.^[249][248]

• Discontinued on June 28, 1947; redundant with the BMT West End Line.

• This route was discontinued on September 8, 2002, and the Ralph Avenue portion merged with the B78 to form the current B47.^[102]

Throop Avenue, Tompkins Avenue, Division Avenue

• Merged on September 10, 1995 with B62 to form the B43 route due to a budget crisis.

• Created in 1978.
• Merged with the B5 on September 10, 1995 to form the B82 due to a budget crisis.

• Became part of the B10 by 1969.

• Began on September 9, 1985, replacing part of the B63.
• Replaced the Manhattan Bridge Three Cent Line streetcar.
• On November 14, 2005, bus service was restored on Park Row between Chatham Square and City Hall. Buses had been running on Frankfort St and St. James Place.^[250]
• Discontinued on June 27, 2010 due to a budget crisis.^[245]

• Route still exists. Relabeled and renumbered to Q54 on December 11, 1988.^[240][244]

• Route still exists. Relabeled to Q55 on December 11, 1988.^[240][244]

• Route still exists. Relabeled to Q56 on December 11, 1988.^[240][244]

• Route still exists. Relabeled to Q58 on December 11, 1988.^[240][244]

• Original Queens terminus was 72nd Street and Grand Avenue.
• Route still exists. Relabeled to Q59 on December 11, 1988.^[240][244]

• The Graham Avenue portion of the route merged with the former B47 to form B43 on September 10, 1995 due to a budget crisis.
• The Flushing Avenue portion was discontinued due to a budget crisis.

• Now part of the B57, formerly part of the B75.
• On March 8, 1954, a public hearing on the route's proposed discontinuation was held.^[251] The route was discontinued on May 1, 1954.^[252]

• Union Street Line streetcar until December 1, 1945.
• Discontinued on June 27, 2010 due to a budget crisis.^[245]

• Transferred to Triboro Coach Corporation in 1961, relabeled to Q72.
• Route still exists

• Renumbered B36S by 1969.

• SS stands for "Shoppers Special", started in the early 1980s and discontinued afterwards.

• Court Street Line streetcar until July 17, 1949 and Smith Street Line streetcar until February 11, 1951.
• Replaced on June 27, 2010 with B57 and B61 due to a budget crisis.^[245]

• Discontinued by 1969.

• Began on August 27, 1936 by Brooklyn-Manhattan Transit.
• In April 2002, plans were announced to modify the eastbound route of the B77 to eliminate delays along Bush Street after the opening and expansion of an entrance to a waste transfer station. Instead of running via Lorraine Street, Court Street, Bush Street, and Smith Street, buses would run via Lorraine Street, Court Street, Hamilton Avenue, Bush Street, and Smith Street. This change was implemented on a temporary basis in 2001.^[253]
• On June 15, 2008, service was extended to Beard Street and Van Brunt Street to serve the newly opened IKEA in Red Hook. Service along Coffey Street was discontinued.^[117]
• Merged with B61 on June 27, 2010 due to a budget crisis.^[245]

• Discontinued in the late 1980s due to low ridership.
• Now part of the B61 and formerly part of the B77.

• Merged with the B40 on September 8, 2002 to form the B47.^[102]

• Discontinued by 1969.

• Only operated during the 1964 World's Fair.

• Only operated during the 1964 World's Fair.

• Now part of the B3.

• New route started on July 1, 1968.^[156]
• Now part of the B6.

• Army Base Shuttle; only ran for a few months in 1969.^[254]

• Proposed in the late 1970s. Implemented in 2010 as a rerouted B1.

• Nicknamed "Culture Bus Loop II".
• 29 stops along the route between Brooklyn and Manhattan.
• Began operating on May 26, 1973 (Memorial Day weekend); weekends and holidays only.
• Discontinued after Labor Day on September 3, 1984.^[255]

• Special Williamsburg Link bus service for the L train shutdown.
• Began on April 26, 2019 as B91 and B92, operating on weekends to provide alternate service during weekend work on the Canarsie Tunnels.
• B91 and B92 discontinued on June 8, 2019 due to low ridership; replaced by B91A.
• B91A discontinued on September 1, 2019, ending all Williamsburg Link service.

• Began service on March 1, 2021, to bring people from Brownsville, Canarsie, and East New York to the COVID-19 vaccination center at Medgar Evers College.^[256]
• Operated only from 6:30 AM to 9 PM, every 30 minutes.
• Discontinued on April 25, 2021 due to low ridership.

• 9 Avenue (southbound) 8 Avenue (northbound)
• Manhattan Bridge, Flatbush Avenue, Eastern Parkway
• Nostrand Avenue (southbound) New York Avenue (northbound)

• Began June 28, 2020, due to the overnight subway shutdown onset by the COVID-19 pandemic.
• Operated between 1 AM and 6 AM, every 20 minutes.
• Discontinued on June 10, 2021 due to overnight subway service being restored.^[258]

• Never implemented, proposed by Pioneer Bus in the 1970s.

East 98th Street and Glenwood Road at Canarsie-Rockaway Parkway station ( train)

• 9th Avenue (southbound), 8th Avenue (northbound)
• Nostrand Avenue (southbound), New York Avenue (northbound)

• Never implemented, proposed as alternatives to the overnight B99 and M99 bus routes.
• Routes would have been operated out of MTA Bus Company instead of NYCT Bus.
• Full route pattern unknown, as the only known information on the two routes has been found in bus route sign code listings.

East 57th Street and 2nd Avenue

• 57th Street
• 11th Avenue (southbound), 10th Avenue (northbound)
• Fulton Street, Rockaway Avenue

• Service between Grand Street station in Manhattan and DeKalb Avenue station in Brooklyn.
• Established when the north side of the Manhattan Bridge closed for construction on July 22, 2001.
• Suspended after September 11th attacks due to street closures; not resumed due to low ridership.

• Operated from April 1, 1951 to September 30, 1959.
• Served by northbound B44 buses, only toward Nostrand Avenue.