| Middle River to Ayamonte | 3,652.10 mi (5,877.49 km) |
| Middle River to Azcoitia | 3,729.14 mi (6,001.47 km) |
| Middle River to Azpeitia | 3,731.17 mi (6,004.73 km) |
| Middle River to Azuqueca de Henares | 3,756.84 mi (6,046.05 km) |
| Middle River to Badajoz | 3,624.88 mi (5,833.68 km) |
| Middle River to Badalona | 3,990.44 mi (6,422.00 km) |
| Middle River to Baena | 3,792.50 mi (6,103.44 km) |
| Middle River to Baeza | 3,823.16 mi (6,152.78 km) |
| Middle River to Bailen | 3,805.45 mi (6,124.28 km) |
| Middle River to Balaguer | 3,913.32 mi (6,297.87 km) |
| Middle River to Banolas | 3,994.14 mi (6,427.94 km) |
| Middle River to Baranain | 3,769.41 mi (6,066.28 km) |
| Middle River to Barbadanes | 3,488.93 mi (5,614.88 km) |
| Middle River to Barbastro | 3,874.49 mi (6,235.39 km) |
| Middle River to Barcelona | 3,989.38 mi (6,420.28 km) |
