| South Portland to Moston | 3,063.21 mi (4,929.76 km) |
| South Portland to Motherwell | 2,954.73 mi (4,755.18 km) |
| South Portland to Mountain Ash | 3,051.35 mi (4,910.67 km) |
| South Portland to Musselburgh | 2,987.53 mi (4,807.96 km) |
| South Portland to Nailsea | 3,081.93 mi (4,959.88 km) |
| South Portland to Nairn | 2,933.95 mi (4,721.74 km) |
| South Portland to Nantwich | 3,058.47 mi (4,922.12 km) |
| South Portland to Neath | 3,034.13 mi (4,882.95 km) |
| South Portland to Nelson | 3,055.87 mi (4,917.95 km) |
| South Portland to Neston | 3,032.27 mi (4,879.96 km) |
| South Portland to Netherton | 3,087.46 mi (4,968.79 km) |
| South Portland to New Brighton | 3,030.59 mi (4,877.27 km) |
| South Portland to New Mills | 3,073.10 mi (4,945.68 km) |
| South Portland to New Milton | 3,142.23 mi (5,056.93 km) |
| South Portland to New Silksworth | 3,068.67 mi (4,938.55 km) |
