| Oceanside to Mangualde | 5,645.92 mi (9,086.23 km) |
| Oceanside to Marco de Canavezes | 5,605.60 mi (9,021.35 km) |
| Oceanside to Marinha Grande | 5,631.87 mi (9,063.62 km) |
| Oceanside to Massama | 5,658.09 mi (9,105.81 km) |
| Oceanside to Matosinhos | 5,582.68 mi (8,984.46 km) |
| Oceanside to Mealhada | 5,626.20 mi (9,054.49 km) |
| Oceanside to Melgaco | 5,562.15 mi (8,951.41 km) |
| Oceanside to Melres | 5,600.02 mi (9,012.35 km) |
| Oceanside to Mira | 5,612.19 mi (9,031.94 km) |
| Oceanside to Miranda do Corvo | 5,642.86 mi (9,081.31 km) |
| Oceanside to Mirandela | 5,633.03 mi (9,065.49 km) |
| Oceanside to Mogadouro | 5,658.54 mi (9,106.53 km) |
| Oceanside to Moimenta da Beira | 5,636.37 mi (9,070.87 km) |
| Oceanside to Moita | 5,675.11 mi (9,133.20 km) |
| Oceanside to Moncao | 5,555.16 mi (8,940.17 km) |
