| Boston to Miranda de Ebro | 723.57 mi (1,164.48 km) |
| Boston to Mislata | 932.88 mi (1,501.32 km) |
| Boston to Moana | 841.68 mi (1,354.55 km) |
| Boston to Moguer | 1,133.22 mi (1,823.75 km) |
| Boston to Molina de Segura | 1,032.39 mi (1,661.48 km) |
| Boston to Molins de Rey | 804.34 mi (1,294.47 km) |
| Boston to Mollerusa | 784.84 mi (1,263.07 km) |
| Boston to Mollet | 797.12 mi (1,282.83 km) |
| Boston to Moncada | 800.33 mi (1,288.01 km) |
| Boston to Moncada | 927.98 mi (1,493.44 km) |
| Boston to Monforte de Lemos | 801.04 mi (1,289.15 km) |
| Boston to Monforte del Cid | 1,008.97 mi (1,623.78 km) |
| Boston to Mongat | 802.26 mi (1,291.12 km) |
| Boston to Monovar | 1,005.17 mi (1,617.67 km) |
| Boston to Monserrat | 941.21 mi (1,514.73 km) |
