| South Portland to Mansfield | 3,109.61 mi (5,004.43 km) |
| South Portland to March | 3,173.14 mi (5,106.67 km) |
| South Portland to Margate | 3,251.82 mi (5,233.30 km) |
| South Portland to Market Drayton | 3,063.12 mi (4,929.61 km) |
| South Portland to Market Harborough | 3,134.41 mi (5,044.34 km) |
| South Portland to Marlow | 3,159.78 mi (5,085.17 km) |
| South Portland to Marple | 3,070.38 mi (4,941.30 km) |
| South Portland to Marton | 3,082.17 mi (4,960.28 km) |
| South Portland to Maryport | 2,990.61 mi (4,812.92 km) |
| South Portland to Matlock | 3,095.68 mi (4,982.01 km) |
| South Portland to Melksham | 3,108.69 mi (5,002.96 km) |
| South Portland to Meltham | 3,074.95 mi (4,948.65 km) |
| South Portland to Melton Mowbray | 3,129.72 mi (5,036.80 km) |
| South Portland to Merthyr Tudful | 3,050.14 mi (4,908.73 km) |
| South Portland to Methil | 2,984.98 mi (4,803.85 km) |
