| Portchester to Manerbio | 641.29 mi (1,032.05 km) |
| Portchester to Manfredonia | 1,029.11 mi (1,656.19 km) |
| Portchester to Maniago | 709.51 mi (1,141.85 km) |
| Portchester to Mantova | 675.13 mi (1,086.52 km) |
| Portchester to Maranello | 706.23 mi (1,136.56 km) |
| Portchester to Marano di Napoli | 1,003.25 mi (1,614.57 km) |
| Portchester to Marano Vicentino | 676.54 mi (1,088.78 km) |
| Portchester to Marcianise | 1,000.46 mi (1,610.09 km) |
| Portchester to Marcon | 716.36 mi (1,152.87 km) |
| Portchester to Mareno di Piave | 707.14 mi (1,138.04 km) |
| Portchester to Margherita di Savoia | 1,050.60 mi (1,690.78 km) |
| Portchester to Mariano Comense | 591.35 mi (951.68 km) |
| Portchester to Marigliano | 1,010.84 mi (1,626.78 km) |
| Portchester to Marino | 906.23 mi (1,458.43 km) |
| Portchester to Marostica | 683.36 mi (1,099.77 km) |
