| Ridgefield to Mangualde | 3,381.36 mi (5,441.77 km) |
| Ridgefield to Marco de Canavezes | 3,347.04 mi (5,386.53 km) |
| Ridgefield to Marinha Grande | 3,348.01 mi (5,388.11 km) |
| Ridgefield to Massama | 3,359.08 mi (5,405.92 km) |
| Ridgefield to Matosinhos | 3,320.62 mi (5,344.03 km) |
| Ridgefield to Mealhada | 3,354.12 mi (5,397.93 km) |
| Ridgefield to Melgaco | 3,317.03 mi (5,338.25 km) |
| Ridgefield to Melres | 3,338.13 mi (5,372.21 km) |
| Ridgefield to Mira | 3,339.06 mi (5,373.69 km) |
| Ridgefield to Miranda do Corvo | 3,367.52 mi (5,419.51 km) |
| Ridgefield to Mirandela | 3,385.30 mi (5,448.11 km) |
| Ridgefield to Mogadouro | 3,411.58 mi (5,490.42 km) |
| Ridgefield to Moimenta da Beira | 3,378.24 mi (5,436.76 km) |
| Ridgefield to Moita | 3,376.44 mi (5,433.86 km) |
| Ridgefield to Moncao | 3,307.99 mi (5,323.70 km) |
