| Holyhead to Bollullos par del Condado | 1,107.41 mi (1,782.20 km) |
| Holyhead to Bormujos | 1,103.65 mi (1,776.15 km) |
| Holyhead to Brenes | 1,090.44 mi (1,754.89 km) |
| Holyhead to Brunete | 892.43 mi (1,436.22 km) |
| Holyhead to Bueu | 783.18 mi (1,260.41 km) |
| Holyhead to Bullas | 1,063.73 mi (1,711.91 km) |
| Holyhead to Bunol | 976.64 mi (1,571.75 km) |
| Holyhead to Burela de Cabo | 679.16 mi (1,093.01 km) |
| Holyhead to Burgos | 759.05 mi (1,221.57 km) |
| Holyhead to Burjasot | 974.25 mi (1,567.90 km) |
| Holyhead to Burriana | 951.44 mi (1,531.19 km) |
| Holyhead to Cabanaquinta | 706.71 mi (1,137.34 km) |
| Holyhead to Cabanillas del Campo | 877.89 mi (1,412.83 km) |
| Holyhead to Cabra | 1,094.64 mi (1,761.65 km) |
| Holyhead to Caceres | 958.75 mi (1,542.97 km) |
