| Key West to Baraboo (Wisconsin) | 1,381.83 mi (2,223.84 km) |
| Key West to Barberton (Ohio) | 1,136.30 mi (1,828.70 km) |
| Key West to Bardstown (Kentucky) | 940.92 mi (1,514.26 km) |
| Key West to Barrington (Illinois) | 1,268.25 mi (2,041.05 km) |
| Key West to Barstow (California) | 2,219.52 mi (3,571.97 km) |
| Key West to Bartlesville (Oklahoma) | 1,187.48 mi (1,911.07 km) |
| Key West to Bartlett (Illinois) | 1,258.37 mi (2,025.15 km) |
| Key West to Bartlett (Tennessee) | 879.80 mi (1,415.90 km) |
| Key West to Bartow (Florida) | 229.59 mi (369.48 km) |
| Key West to Batavia (Illinois) | 1,251.48 mi (2,014.07 km) |
| Key West to Batavia (New York) | 1,290.01 mi (2,076.07 km) |
| Key West to Batesville (Arkansas) | 970.95 mi (1,562.60 km) |
| Key West to Baton Rouge (Louisiana) | 702.03 mi (1,129.81 km) |
| Key West to Battle Creek (Michigan) | 1,241.09 mi (1,997.34 km) |
| Key West to Battle Ground (Washington) | 2,686.99 mi (4,324.29 km) |
