| South Portland to Laurinburg (North Carolina) | 784.89 mi (1,263.15 km) |
| South Portland to Lawndale (California) | 2,636.65 mi (4,243.27 km) |
| South Portland to Lawrence (Indiana) | 848.56 mi (1,365.62 km) |
| South Portland to Lawrence (Kansas) | 1,330.49 mi (2,141.22 km) |
| South Portland to Lawrence (Massachusetts) | 77.92 mi (125.40 km) |
| South Portland to Lawrenceburg (Kentucky) | 854.62 mi (1,375.38 km) |
| South Portland to Lawrenceburg (Tennessee) | 1,074.91 mi (1,729.90 km) |
| South Portland to Lawrenceville (Georgia) | 993.48 mi (1,598.85 km) |
| South Portland to Lawton (Oklahoma) | 1,621.42 mi (2,609.42 km) |
| South Portland to Layton (Utah) | 2,112.70 mi (3,400.06 km) |
| South Portland to Le Mars (Iowa) | 1,299.60 mi (2,091.50 km) |
| South Portland to League City (Texas) | 1,678.10 mi (2,700.63 km) |
| South Portland to Lealman (Florida) | 1,291.64 mi (2,078.70 km) |
| South Portland to Leander (Texas) | 1,754.70 mi (2,823.91 km) |
| South Portland to Leavenworth (Kansas) | 1,304.27 mi (2,099.02 km) |
