| Welling to Mancha Real | 961.95 mi (1,548.12 km) |
| Welling to Manilva | 1,074.53 mi (1,729.29 km) |
| Welling to Manises | 827.91 mi (1,332.39 km) |
| Welling to Manlleu | 661.56 mi (1,064.68 km) |
| Welling to Manresa | 677.37 mi (1,090.12 km) |
| Welling to Manzanares | 877.36 mi (1,411.98 km) |
| Welling to Manzanares el Real | 765.24 mi (1,231.54 km) |
| Welling to Maracena | 1,002.10 mi (1,612.73 km) |
| Welling to Marbella | 1,061.22 mi (1,707.87 km) |
| Welling to Marchena | 1,012.70 mi (1,629.78 km) |
| Welling to Marin | 750.61 mi (1,207.98 km) |
| Welling to Marratxi | 826.30 mi (1,329.81 km) |
| Welling to Martorell | 695.26 mi (1,118.91 km) |
| Welling to Martos | 970.09 mi (1,561.21 km) |
| Welling to Masamagrell | 821.73 mi (1,322.44 km) |
