| Holyhead to Ayamonte | 1,120.91 mi (1,803.94 km) |
| Holyhead to Azcoitia | 707.91 mi (1,139.27 km) |
| Holyhead to Azpeitia | 708.04 mi (1,139.48 km) |
| Holyhead to Azuqueca de Henares | 882.85 mi (1,420.82 km) |
| Holyhead to Badajoz | 1,003.08 mi (1,614.30 km) |
| Holyhead to Badalona | 880.20 mi (1,416.55 km) |
| Holyhead to Baena | 1,084.34 mi (1,745.07 km) |
| Holyhead to Baeza | 1,060.36 mi (1,706.49 km) |
| Holyhead to Bailen | 1,052.80 mi (1,694.32 km) |
| Holyhead to Balaguer | 834.68 mi (1,343.29 km) |
| Holyhead to Banolas | 845.11 mi (1,360.08 km) |
| Holyhead to Baranain | 738.74 mi (1,188.89 km) |
| Holyhead to Barbadanes | 775.43 mi (1,247.94 km) |
| Holyhead to Barbastro | 809.28 mi (1,302.42 km) |
| Holyhead to Barcelona | 882.58 mi (1,420.38 km) |
