| Louth to Ayamonte | 1,171.90 mi (1,886.00 km) |
| Louth to Azcoitia | 711.73 mi (1,145.43 km) |
| Louth to Azpeitia | 711.25 mi (1,144.64 km) |
| Louth to Azuqueca de Henares | 897.57 mi (1,444.50 km) |
| Louth to Badajoz | 1,053.87 mi (1,696.04 km) |
| Louth to Badalona | 831.05 mi (1,337.44 km) |
| Louth to Baena | 1,107.56 mi (1,782.45 km) |
| Louth to Baeza | 1,075.63 mi (1,731.05 km) |
| Louth to Bailen | 1,071.08 mi (1,723.73 km) |
| Louth to Balaguer | 800.74 mi (1,288.66 km) |
| Louth to Banolas | 787.57 mi (1,267.48 km) |
| Louth to Baranain | 734.06 mi (1,181.36 km) |
| Louth to Barbadanes | 846.68 mi (1,362.59 km) |
| Louth to Barbastro | 782.91 mi (1,259.97 km) |
| Louth to Barcelona | 834.21 mi (1,342.54 km) |
