State Road 391
Route information
Maintained by FDOT
Length	2.273 mi[1] (3.658 km)
Major junctions
South end	US 231 in Panama City
North end	SR 390 in Pretty Bayou
Location
Country	United States
State	Florida
Counties	Bay
Highway system
Florida State Highway System Interstate US State Former Pre‑1945 Toll Scenic
← SR 390 → SR 392A

State Road 391 (SR 391) is carried mainly by Airport Road (a.k.a. Airport Drive) in Bay County, Florida. Its southern terminus is at U.S. Route 231 (US 231 or SR 75), where it is carried briefly by Harrison Avenue. Its northern terminus is at SR 390.

Before the late 1970s, the state-maintained portion continued along Airport Road to its intersection with SR 327 (Lisenby Avenue) at the local major airport. In the late 1970s, county stickers were affixed to the state road signs along this portion of the highway. This segment is now maintained locally and has no highway number shields.

The entire route is in Bay County.

Location	mi[1]	km	Destinations	Notes
Panama City	0.000	0.000	US 98 (15th Street / SR 30A) / US 231 (SR 75)
	1.554	2.501	SR 368 (23rd Street)
	1.874	3.016	SR 327 (Lisenby Avenue)
Pretty Bayou	2.273	3.658	SR 390 (St. Andrews Boulevard) – Lynn Haven
1.000 mi = 1.609 km; 1.000 km = 0.621 mi