| Ferry Pass to Mangualde | 4,368.33 mi (7,030.15 km) |
| Ferry Pass to Marco de Canavezes | 4,336.53 mi (6,978.97 km) |
| Ferry Pass to Marinha Grande | 4,328.19 mi (6,965.55 km) |
| Ferry Pass to Massama | 4,332.54 mi (6,972.55 km) |
| Ferry Pass to Matosinhos | 4,309.30 mi (6,935.15 km) |
| Ferry Pass to Mealhada | 4,338.77 mi (6,982.58 km) |
| Ferry Pass to Melgaco | 4,311.17 mi (6,938.16 km) |
| Ferry Pass to Melres | 4,326.63 mi (6,963.04 km) |
| Ferry Pass to Mira | 4,323.53 mi (6,958.06 km) |
| Ferry Pass to Miranda do Corvo | 4,350.76 mi (7,001.88 km) |
| Ferry Pass to Mirandela | 4,377.76 mi (7,045.32 km) |
| Ferry Pass to Mogadouro | 4,403.94 mi (7,087.46 km) |
| Ferry Pass to Moimenta da Beira | 4,367.46 mi (7,028.75 km) |
| Ferry Pass to Moita | 4,349.80 mi (7,000.32 km) |
| Ferry Pass to Moncao | 4,301.63 mi (6,922.81 km) |
