| Chateaudun to Marco de Canavezes | 665.47 mi (1,070.97 km) |
| Chateaudun to Marinha Grande | 768.01 mi (1,235.99 km) |
| Chateaudun to Massama | 833.76 mi (1,341.81 km) |
| Chateaudun to Matosinhos | 684.57 mi (1,101.71 km) |
| Chateaudun to Mealhada | 717.87 mi (1,155.30 km) |
| Chateaudun to Melgaco | 622.62 mi (1,002.01 km) |
| Chateaudun to Melres | 680.11 mi (1,094.53 km) |
| Chateaudun to Mira | 724.68 mi (1,166.26 km) |
| Chateaudun to Miranda do Corvo | 729.38 mi (1,173.82 km) |
| Chateaudun to Mirandela | 617.02 mi (992.99 km) |
| Chateaudun to Mogadouro | 610.19 mi (982.00 km) |
| Chateaudun to Moimenta da Beira | 658.27 mi (1,059.38 km) |
| Chateaudun to Moita | 830.62 mi (1,336.75 km) |
| Chateaudun to Moncao | 632.53 mi (1,017.95 km) |
| Chateaudun to Montalegre | 620.21 mi (998.13 km) |
