| Holyhead to Brownsburg (Indiana) | 3,771.51 mi (6,069.65 km) |
| Holyhead to Brownsville (Florida) | 4,223.12 mi (6,796.45 km) |
| Holyhead to Brownsville (Texas) | 4,907.93 mi (7,898.56 km) |
| Holyhead to Brownwood (Texas) | 4,662.38 mi (7,503.38 km) |
| Holyhead to Brunswick (Georgia) | 4,001.70 mi (6,440.11 km) |
| Holyhead to Brunswick (Ohio) | 3,528.94 mi (5,679.27 km) |
| Holyhead to Brushy Creek (Texas) | 4,678.51 mi (7,529.34 km) |
| Holyhead to Bryan (Texas) | 4,618.23 mi (7,432.32 km) |
| Holyhead to Bryant (Arkansas) | 4,263.96 mi (6,862.18 km) |
| Holyhead to Bryn Mawr-Skyway (Washington) | 4,571.72 mi (7,357.47 km) |
| Holyhead to Buckeye (Arizona) | 5,063.51 mi (8,148.93 km) |
| Holyhead to Buckhall (Virginia) | 3,472.37 mi (5,588.24 km) |
| Holyhead to Bucyrus (Ohio) | 3,594.02 mi (5,784.02 km) |
| Holyhead to Buda (Texas) | 4,705.85 mi (7,573.33 km) |
| Holyhead to Buena Park (California) | 5,218.47 mi (8,398.31 km) |
