| Key West to Brandermill (Virginia) | 921.88 mi (1,483.63 km) |
| Key West to Brandon (Florida) | 235.25 mi (378.61 km) |
| Key West to Brandon (Mississippi) | 729.56 mi (1,174.11 km) |
| Key West to Brandon (South Dakota) | 1,558.57 mi (2,508.28 km) |
| Key West to Branson (Missouri) | 1,077.03 mi (1,733.31 km) |
| Key West to Braselton (Georgia) | 670.71 mi (1,079.40 km) |
| Key West to Brawley (California) | 2,115.00 mi (3,403.76 km) |
| Key West to Brea (California) | 2,256.70 mi (3,631.81 km) |
| Key West to Brecksville (Ohio) | 1,156.91 mi (1,861.87 km) |
| Key West to Bremerton (Washington) | 2,736.10 mi (4,403.33 km) |
| Key West to Brenham (Texas) | 975.74 mi (1,570.30 km) |
| Key West to Brent (Florida) | 528.10 mi (849.89 km) |
| Key West to Brentwood (California) | 2,510.68 mi (4,040.55 km) |
| Key West to Brentwood (New York) | 1,223.90 mi (1,969.68 km) |
| Key West to Brentwood (Tennessee) | 843.66 mi (1,357.73 km) |
