| Holyhead to Blue Springs (Missouri) | 4,110.35 mi (6,614.96 km) |
| Holyhead to Bluffdale (Utah) | 4,652.58 mi (7,487.60 km) |
| Holyhead to Bluffton (Indiana) | 3,682.05 mi (5,925.68 km) |
| Holyhead to Bluffton (South Carolina) | 3,926.23 mi (6,318.66 km) |
| Holyhead to Blythe (California) | 5,119.88 mi (8,239.65 km) |
| Holyhead to Blytheville (Arkansas) | 4,097.73 mi (6,594.66 km) |
| Holyhead to Boca Raton (Florida) | 4,188.96 mi (6,741.49 km) |
| Holyhead to Boerne (Texas) | 4,755.08 mi (7,652.56 km) |
| Holyhead to Bogalusa (Louisiana) | 4,357.06 mi (7,012.01 km) |
| Holyhead to Boiling Springs (South Carolina) | 3,828.85 mi (6,161.95 km) |
| Holyhead to Boise (Idaho) | 4,616.38 mi (7,429.34 km) |
| Holyhead to Bolingbrook (Illinois) | 3,749.17 mi (6,033.71 km) |
| Holyhead to Bolivar (Missouri) | 4,148.51 mi (6,676.38 km) |
| Holyhead to Bon Air (Virginia) | 3,533.53 mi (5,686.67 km) |
| Holyhead to Bonham (Texas) | 4,458.40 mi (7,175.10 km) |
