| South Portland to Los Llanos de Aridane | 3,045.03 mi (4,900.50 km) |
| South Portland to Los Palacios y Villafranca | 3,331.17 mi (5,361.00 km) |
| South Portland to Luanco | 3,140.17 mi (5,053.61 km) |
| South Portland to Lucena | 3,392.47 mi (5,459.65 km) |
| South Portland to Lugo | 3,075.33 mi (4,949.26 km) |
| South Portland to Lumbreras | 3,514.69 mi (5,656.35 km) |
| South Portland to Madrid | 3,331.32 mi (5,361.24 km) |
| South Portland to Madridejos | 3,369.56 mi (5,422.78 km) |
| South Portland to Mahon | 3,718.12 mi (5,983.74 km) |
| South Portland to Mairena del Alcor | 3,333.55 mi (5,364.83 km) |
| South Portland to Mairena del Aljarafe | 3,318.61 mi (5,340.79 km) |
| South Portland to Majadahonda | 3,321.65 mi (5,345.68 km) |
| South Portland to Malaga | 3,418.59 mi (5,501.69 km) |
| South Portland to Malgrat de Mar | 3,589.28 mi (5,776.40 km) |
| South Portland to Manacor | 3,680.68 mi (5,923.48 km) |
