| Donostia to Montevarchi | 679.36 mi (1,093.32 km) |
| Donostia to Monticello Conte Otto | 686.26 mi (1,104.42 km) |
| Donostia to Montichiari | 627.30 mi (1,009.54 km) |
| Donostia to Montignoso | 608.42 mi (979.16 km) |
| Donostia to Montopoli in Val d'Arno | 637.90 mi (1,026.60 km) |
| Donostia to Monza | 576.10 mi (927.15 km) |
| Donostia to Morbegno | 598.56 mi (963.28 km) |
| Donostia to Mori | 660.58 mi (1,063.11 km) |
| Donostia to Morlupo | 738.66 mi (1,188.76 km) |
| Donostia to Morrovalle | 781.22 mi (1,257.25 km) |
| Donostia to Mortara | 546.76 mi (879.93 km) |
| Donostia to Mosciano Sant'Angelo | 800.90 mi (1,288.93 km) |
| Donostia to Motta di Livenza | 737.01 mi (1,186.11 km) |
| Donostia to Motta Sant'Anastasia | 975.68 mi (1,570.21 km) |
| Donostia to Mottola | 991.83 mi (1,596.19 km) |
