| South Portland to LaGrange (Georgia) | 1,081.29 mi (1,740.17 km) |
| South Portland to Laguna Beach (California) | 2,618.75 mi (4,214.47 km) |
| South Portland to Laguna Hills (California) | 2,614.05 mi (4,206.91 km) |
| South Portland to Laguna Niguel (California) | 2,616.55 mi (4,210.93 km) |
| South Portland to Laguna Woods (California) | 2,614.97 mi (4,208.39 km) |
| South Portland to Lahaina (Hawaii) | 5,058.71 mi (8,141.21 km) |
| South Portland to Lake Arbor (Maryland) | 470.62 mi (757.39 km) |
| South Portland to Lake Barcroft (Virginia) | 485.88 mi (781.95 km) |
| South Portland to Lake Butler (Florida) | 1,218.13 mi (1,960.40 km) |
| South Portland to Lake Charles (Louisiana) | 1,561.00 mi (2,512.18 km) |
| South Portland to Lake City (Florida) | 1,149.82 mi (1,850.46 km) |
| South Portland to Lake Elmo (Minnesota) | 1,118.30 mi (1,799.73 km) |
| South Portland to Lake Elsinore (California) | 2,592.64 mi (4,172.46 km) |
| South Portland to Lake Forest (California) | 2,610.32 mi (4,200.90 km) |
| South Portland to Lake Forest (Illinois) | 892.30 mi (1,436.01 km) |
