| Didcot to Mancha Real | 961.78 mi (1,547.84 km) |
| Didcot to Manilva | 1,070.08 mi (1,722.12 km) |
| Didcot to Manises | 838.46 mi (1,349.37 km) |
| Didcot to Manlleu | 684.11 mi (1,100.97 km) |
| Didcot to Manresa | 697.80 mi (1,123.00 km) |
| Didcot to Manzanares | 877.28 mi (1,411.84 km) |
| Didcot to Manzanares el Real | 761.90 mi (1,226.17 km) |
| Didcot to Maracena | 1,002.20 mi (1,612.88 km) |
| Didcot to Marbella | 1,057.79 mi (1,702.35 km) |
| Didcot to Marchena | 1,006.98 mi (1,620.58 km) |
| Didcot to Marin | 726.25 mi (1,168.78 km) |
| Didcot to Marratxi | 848.52 mi (1,365.56 km) |
| Didcot to Martorell | 715.89 mi (1,152.11 km) |
| Didcot to Martos | 968.78 mi (1,559.10 km) |
| Didcot to Masamagrell | 832.73 mi (1,340.16 km) |
