| South Portland to La Union | 3,556.99 mi (5,724.42 km) |
| South Portland to La Victoria de Acentejo | 3,125.04 mi (5,029.26 km) |
| South Portland to Laguna de Duero | 3,248.17 mi (5,227.43 km) |
| South Portland to Lalin | 3,059.07 mi (4,923.10 km) |
| South Portland to Lardero | 3,327.10 mi (5,354.45 km) |
| South Portland to Laredo | 3,254.54 mi (5,237.67 km) |
| South Portland to Las Cabezas de San Juan | 3,336.43 mi (5,369.47 km) |
| South Portland to Las Palmas | 3,188.99 mi (5,132.18 km) |
| South Portland to Las Rozas de Madrid | 3,321.01 mi (5,344.65 km) |
| South Portland to Las Torres de Cotillas | 3,525.58 mi (5,673.87 km) |
| South Portland to Lebrija | 3,331.89 mi (5,362.16 km) |
| South Portland to Leganes | 3,331.25 mi (5,361.12 km) |
| South Portland to Leon | 3,178.57 mi (5,115.42 km) |
| South Portland to Lepe | 3,266.40 mi (5,256.77 km) |
| South Portland to Linares | 3,410.20 mi (5,488.19 km) |
