| Champaign to Mangualde | 4,076.48 mi (6,560.46 km) |
| Champaign to Marco de Canavezes | 4,039.71 mi (6,501.28 km) |
| Champaign to Marinha Grande | 4,050.03 mi (6,517.89 km) |
| Champaign to Massama | 4,066.72 mi (6,544.76 km) |
| Champaign to Matosinhos | 4,014.40 mi (6,460.55 km) |
| Champaign to Mealhada | 4,051.83 mi (6,520.79 km) |
| Champaign to Melgaco | 4,004.50 mi (6,444.61 km) |
| Champaign to Melres | 4,031.97 mi (6,488.83 km) |
| Champaign to Mira | 4,037.05 mi (6,497.01 km) |
| Champaign to Miranda do Corvo | 4,066.52 mi (6,544.44 km) |
| Champaign to Mirandela | 4,074.26 mi (6,556.89 km) |
| Champaign to Mogadouro | 4,100.46 mi (6,599.05 km) |
| Champaign to Moimenta da Beira | 4,070.98 mi (6,551.61 km) |
| Champaign to Moita | 4,084.05 mi (6,572.65 km) |
| Champaign to Moncao | 3,996.15 mi (6,431.18 km) |
