| South Portland to Laindon | 3,208.30 mi (5,163.26 km) |
| South Portland to Lambeth | 3,188.44 mi (5,131.30 km) |
| South Portland to Lanark | 2,964.29 mi (4,770.56 km) |
| South Portland to Lancaster | 3,029.06 mi (4,874.80 km) |
| South Portland to Lancing | 3,195.42 mi (5,142.54 km) |
| South Portland to Larbert | 2,957.19 mi (4,759.13 km) |
| South Portland to Largs | 2,920.98 mi (4,700.86 km) |
| South Portland to Larkhall | 2,955.94 mi (4,757.12 km) |
| South Portland to Launceston | 3,032.30 mi (4,880.01 km) |
| South Portland to Leagrave | 3,165.12 mi (5,093.77 km) |
| South Portland to Leatherhead | 3,184.34 mi (5,124.69 km) |
| South Portland to Ledbury | 3,083.08 mi (4,961.74 km) |
| South Portland to Leeds | 3,082.73 mi (4,961.18 km) |
| South Portland to Leek | 3,077.51 mi (4,952.78 km) |
| South Portland to Leicester | 3,122.66 mi (5,025.43 km) |
