| Flowing Wells to Mangualde | 5,418.78 mi (8,720.69 km) |
| Flowing Wells to Marco de Canavezes | 5,380.07 mi (8,658.39 km) |
| Flowing Wells to Marinha Grande | 5,398.47 mi (8,688.00 km) |
| Flowing Wells to Massama | 5,419.77 mi (8,722.27 km) |
| Flowing Wells to Matosinhos | 5,355.92 mi (8,619.52 km) |
| Flowing Wells to Mealhada | 5,396.57 mi (8,684.94 km) |
| Flowing Wells to Melgaco | 5,340.40 mi (8,594.55 km) |
| Flowing Wells to Melres | 5,373.42 mi (8,647.69 km) |
| Flowing Wells to Mira | 5,382.14 mi (8,661.71 km) |
| Flowing Wells to Miranda do Corvo | 5,412.29 mi (8,710.25 km) |
| Flowing Wells to Mirandela | 5,411.00 mi (8,708.16 km) |
| Flowing Wells to Mogadouro | 5,436.91 mi (8,749.86 km) |
| Flowing Wells to Moimenta da Beira | 5,411.18 mi (8,708.45 km) |
| Flowing Wells to Moita | 5,436.99 mi (8,749.99 km) |
| Flowing Wells to Moncao | 5,332.76 mi (8,582.24 km) |
