| Union to Melzo | 4,827.22 mi (7,768.65 km) |
| Union to Mendicino | 5,363.58 mi (8,631.85 km) |
| Union to Menfi | 5,300.95 mi (8,531.05 km) |
| Union to Mentana | 5,099.57 mi (8,206.97 km) |
| Union to Merano | 4,848.90 mi (7,803.55 km) |
| Union to Merate | 4,819.98 mi (7,757.01 km) |
| Union to Mercato San Severino | 5,238.48 mi (8,430.51 km) |
| Union to Mercogliano | 5,231.43 mi (8,419.18 km) |
| Union to Mesagne | 5,370.17 mi (8,642.46 km) |
| Union to Messina | 5,384.52 mi (8,665.55 km) |
| Union to Mestre | 4,938.60 mi (7,947.92 km) |
| Union to Mestrino | 4,921.87 mi (7,920.98 km) |
| Union to Milan | 4,819.50 mi (7,756.24 km) |
| Union to Milazzo | 5,370.25 mi (8,642.58 km) |
| Union to Minerbio | 4,944.26 mi (7,957.02 km) |
