| Trebbin to Marco de Canavezes | 1,258.77 mi (2,025.79 km) |
| Trebbin to Marinha Grande | 1,358.33 mi (2,186.01 km) |
| Trebbin to Massama | 1,421.23 mi (2,287.25 km) |
| Trebbin to Matosinhos | 1,279.26 mi (2,058.77 km) |
| Trebbin to Mealhada | 1,309.04 mi (2,106.70 km) |
| Trebbin to Melgaco | 1,218.84 mi (1,961.53 km) |
| Trebbin to Melres | 1,273.69 mi (2,049.81 km) |
| Trebbin to Mira | 1,316.98 mi (2,119.47 km) |
| Trebbin to Miranda do Corvo | 1,318.91 mi (2,122.59 km) |
| Trebbin to Mirandela | 1,208.35 mi (1,944.66 km) |
| Trebbin to Mogadouro | 1,198.81 mi (1,929.30 km) |
| Trebbin to Moimenta da Beira | 1,248.94 mi (2,009.97 km) |
| Trebbin to Moita | 1,416.32 mi (2,279.35 km) |
| Trebbin to Moncao | 1,228.95 mi (1,977.81 km) |
| Trebbin to Montalegre | 1,214.74 mi (1,954.94 km) |
