| Swindon to Miranda de Ebro | 615.69 mi (990.86 km) |
| Swindon to Mislata | 837.56 mi (1,347.92 km) |
| Swindon to Moana | 719.65 mi (1,158.16 km) |
| Swindon to Moguer | 1,017.47 mi (1,637.46 km) |
| Swindon to Molina de Segura | 933.52 mi (1,502.36 km) |
| Swindon to Molins de Rey | 723.65 mi (1,164.60 km) |
| Swindon to Mollerusa | 697.52 mi (1,122.55 km) |
| Swindon to Mollet | 717.83 mi (1,155.23 km) |
| Swindon to Moncada | 720.83 mi (1,160.06 km) |
| Swindon to Moncada | 832.77 mi (1,340.22 km) |
| Swindon to Monforte de Lemos | 680.21 mi (1,094.69 km) |
| Swindon to Monforte del Cid | 912.12 mi (1,467.92 km) |
| Swindon to Mongat | 723.30 mi (1,164.04 km) |
| Swindon to Monovar | 907.86 mi (1,461.07 km) |
| Swindon to Monserrat | 845.01 mi (1,359.91 km) |
