| South Portland to Los Alamitos (California) | 2,625.05 mi (4,224.62 km) |
| South Portland to Los Alamos (New Mexico) | 1,968.24 mi (3,167.57 km) |
| South Portland to Los Altos (California) | 2,711.42 mi (4,363.61 km) |
| South Portland to Los Angeles (California) | 2,631.71 mi (4,235.33 km) |
| South Portland to Los Banos (California) | 2,658.57 mi (4,278.55 km) |
| South Portland to Los Gatos (California) | 2,708.67 mi (4,359.19 km) |
| South Portland to Los Lunas (New Mexico) | 2,027.64 mi (3,263.18 km) |
| South Portland to Los Osos (California) | 2,712.93 mi (4,366.04 km) |
| South Portland to Loudoun Valley Estates (Virginia) | 493.29 mi (793.88 km) |
| South Portland to Louisville (Colorado) | 1,799.53 mi (2,896.06 km) |
| South Portland to Louisville (Kentucky) | 884.72 mi (1,423.82 km) |
| South Portland to Lovejoy (Georgia) | 1,031.90 mi (1,660.69 km) |
| South Portland to Loveland (Colorado) | 1,785.34 mi (2,873.23 km) |
| South Portland to Loveland (Ohio) | 783.17 mi (1,260.39 km) |
| South Portland to Loves Park (Illinois) | 947.79 mi (1,525.32 km) |
