| South Portland to Mozzate | 3,729.47 mi (6,002.01 km) |
| South Portland to Muggia | 3,934.56 mi (6,332.06 km) |
| South Portland to Muggio | 3,744.25 mi (6,025.78 km) |
| South Portland to Mugnano di Napoli | 4,125.92 mi (6,640.02 km) |
| South Portland to Musile di Piave | 3,883.89 mi (6,250.52 km) |
| South Portland to Mussomeli | 4,234.84 mi (6,815.32 km) |
| South Portland to Naples | 4,130.57 mi (6,647.51 km) |
| South Portland to Nardo | 4,320.01 mi (6,952.39 km) |
| South Portland to Narni | 3,992.45 mi (6,425.23 km) |
| South Portland to Nembro | 3,761.74 mi (6,053.94 km) |
| South Portland to Nepi | 3,995.06 mi (6,429.43 km) |
| South Portland to Nerviano | 3,735.28 mi (6,011.36 km) |
| South Portland to Nettuno | 4,037.66 mi (6,497.98 km) |
| South Portland to Nichelino | 3,696.36 mi (5,948.71 km) |
| South Portland to Nicosia | 4,257.13 mi (6,851.20 km) |
