| Union to Montevarchi | 4,992.88 mi (8,035.26 km) |
| Union to Monticello Conte Otto | 4,908.59 mi (7,899.61 km) |
| Union to Montichiari | 4,869.19 mi (7,836.20 km) |
| Union to Montignoso | 4,916.46 mi (7,912.27 km) |
| Union to Montopoli in Val d'Arno | 4,954.18 mi (7,972.99 km) |
| Union to Monza | 4,818.23 mi (7,754.20 km) |
| Union to Morbegno | 4,808.17 mi (7,738.00 km) |
| Union to Mori | 4,875.01 mi (7,845.58 km) |
| Union to Morlupo | 5,088.33 mi (8,188.87 km) |
| Union to Morrovalle | 5,082.21 mi (8,179.02 km) |
| Union to Mortara | 4,810.45 mi (7,741.68 km) |
| Union to Mosciano Sant'Angelo | 5,118.23 mi (8,236.99 km) |
| Union to Motta di Livenza | 4,941.09 mi (7,951.92 km) |
| Union to Motta Sant'Anastasia | 5,390.52 mi (8,675.20 km) |
| Union to Mottola | 5,336.57 mi (8,588.38 km) |
