| South Portland to Leawood (Kansas) | 1,300.10 mi (2,092.30 km) |
| South Portland to Lebanon (Indiana) | 866.96 mi (1,395.23 km) |
| South Portland to Lebanon (Missouri) | 1,238.25 mi (1,992.78 km) |
| South Portland to Lebanon (New Hampshire) | 98.19 mi (158.03 km) |
| South Portland to Lebanon (Ohio) | 775.39 mi (1,247.88 km) |
| South Portland to Lebanon (Oregon) | 2,566.09 mi (4,129.72 km) |
| South Portland to Lebanon (Pennsylvania) | 388.27 mi (624.85 km) |
| South Portland to Lebanon (Tennessee) | 991.16 mi (1,595.12 km) |
| South Portland to Lee's Summit (Missouri) | 1,287.70 mi (2,072.36 km) |
| South Portland to Leeds (Alabama) | 1,118.24 mi (1,799.63 km) |
| South Portland to Leesburg (Florida) | 1,211.14 mi (1,949.14 km) |
| South Portland to Leesburg (Virginia) | 489.22 mi (787.33 km) |
| South Portland to Lehi (Utah) | 2,123.53 mi (3,417.50 km) |
| South Portland to Lehigh Acres (Florida) | 1,336.46 mi (2,150.82 km) |
| South Portland to Leisure City (Florida) | 1,377.21 mi (2,216.41 km) |
