| Swindon to Masanasa | 842.22 mi (1,355.42 km) |
| Swindon to Masquefa | 715.29 mi (1,151.14 km) |
| Swindon to Matadepera | 710.99 mi (1,144.23 km) |
| Swindon to Mazarron | 964.93 mi (1,552.90 km) |
| Swindon to Meco | 764.01 mi (1,229.55 km) |
| Swindon to Medina del Campo | 724.28 mi (1,165.62 km) |
| Swindon to Medina Sidonia | 1,062.47 mi (1,709.88 km) |
| Swindon to Mejorada del Campo | 775.10 mi (1,247.41 km) |
| Swindon to Meliana | 834.22 mi (1,342.55 km) |
| Swindon to Mengibar | 944.26 mi (1,519.64 km) |
| Swindon to Merida | 901.89 mi (1,451.45 km) |
| Swindon to Miajadas | 881.95 mi (1,419.36 km) |
| Swindon to Mieres | 603.53 mi (971.28 km) |
| Swindon to Miguelturra | 876.38 mi (1,410.40 km) |
| Swindon to Mijas | 1,043.08 mi (1,678.68 km) |
