| Letchworth to Mancha Real | 994.15 mi (1,599.92 km) |
| Letchworth to Manilva | 1,105.15 mi (1,778.57 km) |
| Letchworth to Manises | 863.36 mi (1,389.45 km) |
| Letchworth to Manlleu | 699.40 mi (1,125.58 km) |
| Letchworth to Manresa | 714.89 mi (1,150.50 km) |
| Letchworth to Manzanares | 909.55 mi (1,463.77 km) |
| Letchworth to Manzanares el Real | 796.14 mi (1,281.27 km) |
| Letchworth to Maracena | 1,034.40 mi (1,664.71 km) |
| Letchworth to Marbella | 1,092.24 mi (1,757.79 km) |
| Letchworth to Marchena | 1,042.79 mi (1,678.21 km) |
| Letchworth to Marin | 771.32 mi (1,241.32 km) |
| Letchworth to Marratxi | 864.15 mi (1,390.72 km) |
| Letchworth to Martorell | 732.82 mi (1,179.36 km) |
| Letchworth to Martos | 1,001.87 mi (1,612.36 km) |
| Letchworth to Masamagrell | 857.30 mi (1,379.69 km) |
