| Letchworth to Ayamonte | 1,079.00 mi (1,736.48 km) |
| Letchworth to Azcoitia | 615.55 mi (990.64 km) |
| Letchworth to Azpeitia | 615.04 mi (989.82 km) |
| Letchworth to Azuqueca de Henares | 801.63 mi (1,290.10 km) |
| Letchworth to Badajoz | 961.23 mi (1,546.95 km) |
| Letchworth to Badalona | 737.74 mi (1,187.28 km) |
| Letchworth to Baena | 1,011.88 mi (1,628.46 km) |
| Letchworth to Baeza | 979.54 mi (1,576.41 km) |
| Letchworth to Bailen | 975.14 mi (1,569.33 km) |
| Letchworth to Balaguer | 705.57 mi (1,135.51 km) |
| Letchworth to Banolas | 695.46 mi (1,119.23 km) |
| Letchworth to Baranain | 637.65 mi (1,026.21 km) |
| Letchworth to Barbadanes | 758.80 mi (1,221.17 km) |
| Letchworth to Barbastro | 687.12 mi (1,105.82 km) |
| Letchworth to Barcelona | 740.81 mi (1,192.21 km) |
