| Boston to Los Llanos de Aridane | 1,911.18 mi (3,075.74 km) |
| Boston to Los Palacios y Villafranca | 1,128.85 mi (1,816.70 km) |
| Boston to Luanco | 698.67 mi (1,124.40 km) |
| Boston to Lucena | 1,097.23 mi (1,765.83 km) |
| Boston to Lugo | 770.04 mi (1,239.26 km) |
| Boston to Lumbreras | 1,068.22 mi (1,719.14 km) |
| Boston to Madrid | 884.68 mi (1,423.75 km) |
| Boston to Madridejos | 947.95 mi (1,525.57 km) |
| Boston to Mahon | 926.38 mi (1,490.86 km) |
| Boston to Mairena del Alcor | 1,112.79 mi (1,790.86 km) |
| Boston to Mairena del Aljarafe | 1,119.10 mi (1,801.02 km) |
| Boston to Majadahonda | 882.46 mi (1,420.19 km) |
| Boston to Malaga | 1,143.02 mi (1,839.51 km) |
| Boston to Malgrat de Mar | 793.20 mi (1,276.53 km) |
| Boston to Manacor | 938.64 mi (1,510.59 km) |
