| South Portland to Lydney | 3,085.14 mi (4,965.05 km) |
| South Portland to Lye | 3,086.80 mi (4,967.72 km) |
| South Portland to Lymington | 3,146.59 mi (5,063.94 km) |
| South Portland to Lymm | 3,054.26 mi (4,915.35 km) |
| South Portland to Mablethorpe | 3,163.05 mi (5,090.44 km) |
| South Portland to Macclesfield | 3,070.50 mi (4,941.49 km) |
| South Portland to Mackworth | 3,100.45 mi (4,989.70 km) |
| South Portland to Madeley | 3,069.87 mi (4,940.48 km) |
| South Portland to Maesteg | 3,041.70 mi (4,895.14 km) |
| South Portland to Maghull | 3,033.13 mi (4,881.35 km) |
| South Portland to Maidenhead | 3,163.39 mi (5,090.98 km) |
| South Portland to Maidstone | 3,219.81 mi (5,181.78 km) |
| South Portland to Maldon | 3,215.08 mi (5,174.17 km) |
| South Portland to Maltby | 3,103.42 mi (4,994.47 km) |
| South Portland to Manchester | 3,061.51 mi (4,927.03 km) |
