| Defiance to Brown Deer (Wisconsin) | 226.25 mi (364.12 km) |
| Defiance to Brownsburg (Indiana) | 145.66 mi (234.41 km) |
| Defiance to Brownsville (Florida) | 1,093.87 mi (1,760.42 km) |
| Defiance to Brownsville (Texas) | 1,293.72 mi (2,082.03 km) |
| Defiance to Brownwood (Texas) | 1,044.21 mi (1,680.49 km) |
| Defiance to Brunswick (Georgia) | 718.54 mi (1,156.37 km) |
| Defiance to Brunswick (Ohio) | 132.24 mi (212.82 km) |
| Defiance to Brushy Creek (Texas) | 1,052.94 mi (1,694.55 km) |
| Defiance to Bryan (Texas) | 992.72 mi (1,597.63 km) |
| Defiance to Bryant (Arkansas) | 638.27 mi (1,027.20 km) |
| Defiance to Bryn Mawr-Skyway (Washington) | 1,898.71 mi (3,055.68 km) |
| Defiance to Buckeye (Arizona) | 1,636.26 mi (2,633.31 km) |
| Defiance to Buckhall (Virginia) | 406.39 mi (654.02 km) |
| Defiance to Bucyrus (Ohio) | 79.73 mi (128.31 km) |
| Defiance to Buda (Texas) | 1,080.05 mi (1,738.17 km) |
