| South Portland to Lancaster (Texas) | 1,619.31 mi (2,606.03 km) |
| South Portland to Land O' Lakes (Florida) | 1,261.20 mi (2,029.70 km) |
| South Portland to Landover (Maryland) | 472.09 mi (759.75 km) |
| South Portland to Langley Park (Maryland) | 472.39 mi (760.25 km) |
| South Portland to Lanham (Maryland) | 468.51 mi (753.99 km) |
| South Portland to Lansdale (Pennsylvania) | 347.24 mi (558.84 km) |
| South Portland to Lansdowne (Pennsylvania) | 361.81 mi (582.28 km) |
| South Portland to Lansdowne (Virginia) | 487.41 mi (784.42 km) |
| South Portland to Lansing (Illinois) | 887.56 mi (1,428.38 km) |
| South Portland to Lansing (Kansas) | 1,304.97 mi (2,100.15 km) |
| South Portland to Lansing (Michigan) | 720.98 mi (1,160.30 km) |
| South Portland to Lantana (Florida) | 1,298.58 mi (2,089.86 km) |
| South Portland to Lantana (Texas) | 1,615.88 mi (2,600.51 km) |
| South Portland to Laplace (Louisiana) | 1,450.09 mi (2,333.69 km) |
| South Portland to Laramie (Wyoming) | 1,793.55 mi (2,886.43 km) |
