| Bull Run to Brown Deer (Wisconsin) | 623.50 mi (1,003.42 km) |
| Bull Run to Brownsburg (Indiana) | 479.16 mi (771.14 km) |
| Bull Run to Brownsville (Florida) | 909.22 mi (1,463.24 km) |
| Bull Run to Brownsville (Texas) | 1,454.92 mi (2,341.47 km) |
| Bull Run to Brownwood (Texas) | 1,301.49 mi (2,094.55 km) |
| Bull Run to Brunswick (Georgia) | 572.93 mi (922.04 km) |
| Bull Run to Brunswick (Ohio) | 284.19 mi (457.37 km) |
| Bull Run to Brushy Creek (Texas) | 1,279.44 mi (2,059.06 km) |
| Bull Run to Bryan (Texas) | 1,205.61 mi (1,940.24 km) |
| Bull Run to Bryant (Arkansas) | 876.62 mi (1,410.79 km) |
| Bull Run to Bryn Mawr-Skyway (Washington) | 2,299.44 mi (3,700.59 km) |
| Bull Run to Buckeye (Arizona) | 1,982.60 mi (3,190.69 km) |
| Bull Run to Buckhall (Virginia) | 5.52 mi (8.89 km) |
| Bull Run to Bucyrus (Ohio) | 321.38 mi (517.22 km) |
| Bull Run to Buda (Texas) | 1,301.20 mi (2,094.07 km) |
