| Norridge to Mangualde | 3,994.83 mi (6,429.05 km) |
| Norridge to Marco de Canavezes | 3,957.30 mi (6,368.66 km) |
| Norridge to Marinha Grande | 3,970.85 mi (6,390.46 km) |
| Norridge to Massama | 3,989.67 mi (6,420.75 km) |
| Norridge to Matosinhos | 3,932.40 mi (6,328.59 km) |
| Norridge to Mealhada | 3,971.11 mi (6,390.88 km) |
| Norridge to Melgaco | 3,920.48 mi (6,309.40 km) |
| Norridge to Melres | 3,949.96 mi (6,356.85 km) |
| Norridge to Mira | 3,956.46 mi (6,367.31 km) |
| Norridge to Miranda do Corvo | 3,986.23 mi (6,415.22 km) |
| Norridge to Mirandela | 3,990.59 mi (6,422.23 km) |
| Norridge to Mogadouro | 4,016.71 mi (6,464.27 km) |
| Norridge to Moimenta da Beira | 3,988.54 mi (6,418.93 km) |
| Norridge to Moita | 4,006.96 mi (6,448.57 km) |
| Norridge to Moncao | 3,912.37 mi (6,296.35 km) |
