| Trier to Marco de Canavezes | 926.91 mi (1,491.73 km) |
| Trier to Marinha Grande | 1,026.82 mi (1,652.51 km) |
| Trier to Massama | 1,090.27 mi (1,754.62 km) |
| Trier to Matosinhos | 947.39 mi (1,524.68 km) |
| Trier to Mealhada | 977.39 mi (1,572.96 km) |
| Trier to Melgaco | 887.19 mi (1,427.80 km) |
| Trier to Melres | 941.83 mi (1,515.73 km) |
| Trier to Mira | 985.21 mi (1,585.54 km) |
| Trier to Miranda do Corvo | 987.51 mi (1,589.24 km) |
| Trier to Mirandela | 876.64 mi (1,410.82 km) |
| Trier to Mogadouro | 867.46 mi (1,396.03 km) |
| Trier to Moimenta da Beira | 917.33 mi (1,476.30 km) |
| Trier to Moita | 1,085.73 mi (1,747.31 km) |
| Trier to Moncao | 897.37 mi (1,444.18 km) |
| Trier to Montalegre | 882.87 mi (1,420.85 km) |
