| Middle River to Los Llanos de Aridane | 3,373.74 mi (5,429.51 km) |
| Middle River to Los Palacios y Villafranca | 3,726.64 mi (5,997.45 km) |
| Middle River to Luanco | 3,556.12 mi (5,723.02 km) |
| Middle River to Lucena | 3,790.83 mi (6,100.76 km) |
| Middle River to Lugo | 3,488.14 mi (5,613.62 km) |
| Middle River to Lumbreras | 3,917.24 mi (6,304.18 km) |
| Middle River to Madrid | 3,740.22 mi (6,019.30 km) |
| Middle River to Madridejos | 3,775.80 mi (6,076.57 km) |
| Middle River to Mahon | 4,133.84 mi (6,652.77 km) |
| Middle River to Mairena del Alcor | 3,730.02 mi (6,002.89 km) |
| Middle River to Mairena del Aljarafe | 3,714.48 mi (5,977.88 km) |
| Middle River to Majadahonda | 3,730.54 mi (6,003.72 km) |
| Middle River to Malaga | 3,814.72 mi (6,139.20 km) |
| Middle River to Malgrat de Mar | 4,007.54 mi (6,449.52 km) |
| Middle River to Manacor | 4,094.59 mi (6,589.61 km) |
