| Harrow Weald to Los Llanos de Aridane | 1,826.69 mi (2,939.77 km) |
| Harrow Weald to Los Palacios y Villafranca | 1,034.45 mi (1,664.79 km) |
| Harrow Weald to Luanco | 607.49 mi (977.66 km) |
| Harrow Weald to Lucena | 1,002.00 mi (1,612.57 km) |
| Harrow Weald to Lugo | 681.99 mi (1,097.55 km) |
| Harrow Weald to Lumbreras | 972.75 mi (1,565.49 km) |
| Harrow Weald to Madrid | 789.41 mi (1,270.43 km) |
| Harrow Weald to Madridejos | 852.52 mi (1,372.00 km) |
| Harrow Weald to Mahon | 838.84 mi (1,349.99 km) |
| Harrow Weald to Mairena del Alcor | 1,018.30 mi (1,638.79 km) |
| Harrow Weald to Mairena del Aljarafe | 1,024.86 mi (1,649.35 km) |
| Harrow Weald to Majadahonda | 787.29 mi (1,267.03 km) |
| Harrow Weald to Malaga | 1,047.70 mi (1,686.12 km) |
| Harrow Weald to Malgrat de Mar | 703.26 mi (1,131.78 km) |
| Harrow Weald to Manacor | 848.72 mi (1,365.88 km) |
