| Portchester to Melzo | 608.92 mi (979.96 km) |
| Portchester to Mendicino | 1,158.38 mi (1,864.24 km) |
| Portchester to Menfi | 1,145.94 mi (1,844.22 km) |
| Portchester to Mentana | 892.79 mi (1,436.81 km) |
| Portchester to Merano | 628.18 mi (1,010.96 km) |
| Portchester to Merate | 600.54 mi (966.48 km) |
| Portchester to Mercato San Severino | 1,029.63 mi (1,657.03 km) |
| Portchester to Mercogliano | 1,021.65 mi (1,644.19 km) |
| Portchester to Mesagne | 1,150.78 mi (1,852.00 km) |
| Portchester to Messina | 1,193.93 mi (1,921.45 km) |
| Portchester to Mestre | 716.52 mi (1,153.12 km) |
| Portchester to Mestrino | 699.77 mi (1,126.18 km) |
| Portchester to Milan | 602.20 mi (969.15 km) |
| Portchester to Milazzo | 1,182.19 mi (1,902.55 km) |
| Portchester to Minerbio | 724.63 mi (1,166.18 km) |
