| Holyhead to Buenaventura Lakes (Florida) | 4,139.26 mi (6,661.49 km) |
| Holyhead to Buffalo (Minnesota) | 3,796.01 mi (6,109.08 km) |
| Holyhead to Buffalo (New York) | 3,338.83 mi (5,373.33 km) |
| Holyhead to Buffalo Grove (Illinois) | 3,721.44 mi (5,989.08 km) |
| Holyhead to Buford (Georgia) | 3,954.83 mi (6,364.68 km) |
| Holyhead to Bull Run (Virginia) | 3,472.68 mi (5,588.73 km) |
| Holyhead to Bullhead City (Arizona) | 5,033.51 mi (8,100.66 km) |
| Holyhead to Burbank (California) | 5,209.96 mi (8,384.62 km) |
| Holyhead to Burbank (Illinois) | 3,734.03 mi (6,009.33 km) |
| Holyhead to Burien (Washington) | 4,575.43 mi (7,363.44 km) |
| Holyhead to Burkburnett (Texas) | 4,522.93 mi (7,278.96 km) |
| Holyhead to Burke (Virginia) | 3,462.52 mi (5,572.39 km) |
| Holyhead to Burke Centre (Virginia) | 3,463.39 mi (5,573.78 km) |
| Holyhead to Burleson (Texas) | 4,557.72 mi (7,334.94 km) |
| Holyhead to Burley (Idaho) | 4,599.52 mi (7,402.21 km) |
