| Boston to Montevarchi | 840.64 mi (1,352.89 km) |
| Boston to Monticello Conte Otto | 728.47 mi (1,172.35 km) |
| Boston to Montichiari | 701.28 mi (1,128.60 km) |
| Boston to Montignoso | 773.41 mi (1,244.68 km) |
| Boston to Montopoli in Val d'Arno | 809.61 mi (1,302.95 km) |
| Boston to Monza | 659.41 mi (1,061.22 km) |
| Boston to Morbegno | 637.75 mi (1,026.36 km) |
| Boston to Mori | 696.40 mi (1,120.74 km) |
| Boston to Morlupo | 946.40 mi (1,523.09 km) |
| Boston to Morrovalle | 912.78 mi (1,468.98 km) |
| Boston to Mortara | 663.94 mi (1,068.51 km) |
| Boston to Mosciano Sant'Angelo | 953.00 mi (1,533.70 km) |
| Boston to Motta di Livenza | 752.99 mi (1,211.82 km) |
| Boston to Motta Sant'Anastasia | 1,288.48 mi (2,073.61 km) |
| Boston to Mottola | 1,167.89 mi (1,879.53 km) |
