| Uster to Mangualde | 939.84 mi (1,512.52 km) |
| Uster to Marco de Canavezes | 934.31 mi (1,503.62 km) |
| Uster to Marinha Grande | 1,024.57 mi (1,648.89 km) |
| Uster to Massama | 1,081.13 mi (1,739.91 km) |
| Uster to Matosinhos | 958.42 mi (1,542.44 km) |
| Uster to Mealhada | 978.22 mi (1,574.29 km) |
| Uster to Melgaco | 906.20 mi (1,458.39 km) |
| Uster to Melres | 949.61 mi (1,528.24 km) |
| Uster to Mira | 988.46 mi (1,590.77 km) |
| Uster to Miranda do Corvo | 984.63 mi (1,584.61 km) |
| Uster to Mirandela | 880.77 mi (1,417.46 km) |
| Uster to Mogadouro | 866.39 mi (1,394.33 km) |
| Uster to Moimenta da Beira | 918.74 mi (1,478.57 km) |
| Uster to Moita | 1,073.68 mi (1,727.92 km) |
| Uster to Moncao | 917.21 mi (1,476.10 km) |
