| Boston to La Union | 1,061.71 mi (1,708.65 km) |
| Boston to La Victoria de Acentejo | 1,891.48 mi (3,044.04 km) |
| Boston to Laguna de Duero | 816.77 mi (1,314.46 km) |
| Boston to Lalin | 804.99 mi (1,295.51 km) |
| Boston to Lardero | 737.45 mi (1,186.82 km) |
| Boston to Laredo | 678.49 mi (1,091.93 km) |
| Boston to Las Cabezas de San Juan | 1,141.23 mi (1,836.64 km) |
| Boston to Las Palmas | 1,888.62 mi (3,039.44 km) |
| Boston to Las Rozas de Madrid | 881.19 mi (1,418.14 km) |
| Boston to Las Torres de Cotillas | 1,034.43 mi (1,664.76 km) |
| Boston to Lebrija | 1,147.11 mi (1,846.09 km) |
| Boston to Leganes | 891.28 mi (1,434.38 km) |
| Boston to Leon | 760.71 mi (1,224.25 km) |
| Boston to Lepe | 1,139.79 mi (1,834.31 km) |
| Boston to Linares | 1,043.25 mi (1,678.95 km) |
