| Costessey to Mangualde | 933.89 mi (1,502.96 km) |
| Costessey to Marco de Canavezes | 906.11 mi (1,458.24 km) |
| Costessey to Marinha Grande | 1,013.23 mi (1,630.64 km) |
| Costessey to Massama | 1,083.24 mi (1,743.31 km) |
| Costessey to Matosinhos | 918.83 mi (1,478.71 km) |
| Costessey to Mealhada | 962.77 mi (1,549.43 km) |
| Costessey to Melgaco | 851.29 mi (1,370.01 km) |
| Costessey to Melres | 919.05 mi (1,479.07 km) |
| Costessey to Mira | 966.04 mi (1,554.68 km) |
| Costessey to Miranda do Corvo | 978.00 mi (1,573.93 km) |
| Costessey to Mirandela | 866.00 mi (1,393.69 km) |
| Costessey to Mogadouro | 866.07 mi (1,393.81 km) |
| Costessey to Moimenta da Beira | 907.06 mi (1,459.77 km) |
| Costessey to Moita | 1,083.66 mi (1,743.99 km) |
| Costessey to Moncao | 859.08 mi (1,382.56 km) |
