| North Adams to Mangualde | 3,290.68 mi (5,295.84 km) |
| North Adams to Marco de Canavezes | 3,255.39 mi (5,239.05 km) |
| North Adams to Marinha Grande | 3,260.11 mi (5,246.64 km) |
| North Adams to Massama | 3,273.68 mi (5,268.47 km) |
| North Adams to Matosinhos | 3,229.37 mi (5,197.17 km) |
| North Adams to Mealhada | 3,264.44 mi (5,253.61 km) |
| North Adams to Melgaco | 3,223.44 mi (5,187.63 km) |
| North Adams to Melres | 3,246.92 mi (5,225.42 km) |
| North Adams to Mira | 3,249.48 mi (5,229.54 km) |
| North Adams to Miranda do Corvo | 3,278.38 mi (5,276.05 km) |
| North Adams to Mirandela | 3,292.32 mi (5,298.48 km) |
| North Adams to Mogadouro | 3,318.60 mi (5,340.77 km) |
| North Adams to Moimenta da Beira | 3,286.65 mi (5,289.35 km) |
| North Adams to Moita | 3,291.04 mi (5,296.41 km) |
| North Adams to Moncao | 3,214.64 mi (5,173.47 km) |
