| Boston to Brownsburg (Indiana) | 3,956.67 mi (6,367.65 km) |
| Boston to Brownsville (Florida) | 4,415.60 mi (7,106.23 km) |
| Boston to Brownsville (Texas) | 5,095.36 mi (8,200.19 km) |
| Boston to Brownwood (Texas) | 4,845.35 mi (7,797.84 km) |
| Boston to Brunswick (Georgia) | 4,193.38 mi (6,748.59 km) |
| Boston to Brunswick (Ohio) | 3,715.53 mi (5,979.57 km) |
| Boston to Brushy Creek (Texas) | 4,863.17 mi (7,826.52 km) |
| Boston to Bryan (Texas) | 4,803.68 mi (7,730.77 km) |
| Boston to Bryant (Arkansas) | 4,449.28 mi (7,160.42 km) |
| Boston to Bryn Mawr-Skyway (Washington) | 4,711.00 mi (7,581.63 km) |
| Boston to Buckeye (Arizona) | 5,232.20 mi (8,420.42 km) |
| Boston to Buckhall (Virginia) | 3,662.49 mi (5,894.22 km) |
| Boston to Bucyrus (Ohio) | 3,780.35 mi (6,083.88 km) |
| Boston to Buda (Texas) | 4,890.71 mi (7,870.84 km) |
| Boston to Buena Park (California) | 5,380.21 mi (8,658.62 km) |
