| South Portland to La Quinta (California) | 2,540.90 mi (4,089.19 km) |
| South Portland to La Riviera (California) | 2,639.55 mi (4,247.95 km) |
| South Portland to La Vergne (Tennessee) | 1,008.15 mi (1,622.46 km) |
| South Portland to La Verne (California) | 2,599.68 mi (4,183.78 km) |
| South Portland to La Vista (Nebraska) | 1,320.51 mi (2,125.15 km) |
| South Portland to Lacey (Washington) | 2,512.70 mi (4,043.80 km) |
| South Portland to Lackawanna (New York) | 433.56 mi (697.75 km) |
| South Portland to Laconia (New Hampshire) | 59.58 mi (95.88 km) |
| South Portland to Ladera Ranch (California) | 2,612.64 mi (4,204.64 km) |
| South Portland to Ladson (South Carolina) | 905.13 mi (1,456.66 km) |
| South Portland to Lady Lake (Florida) | 1,202.65 mi (1,935.48 km) |
| South Portland to Lafayette (California) | 2,696.87 mi (4,340.19 km) |
| South Portland to Lafayette (Colorado) | 1,796.77 mi (2,891.62 km) |
| South Portland to Lafayette (Indiana) | 877.76 mi (1,412.61 km) |
| South Portland to Lafayette (Louisiana) | 1,509.47 mi (2,429.26 km) |
