| Prineville to Mangualde | 5,253.42 mi (8,454.56 km) |
| Prineville to Marco de Canavezes | 5,210.28 mi (8,385.13 km) |
| Prineville to Marinha Grande | 5,254.47 mi (8,456.25 km) |
| Prineville to Massama | 5,292.02 mi (8,516.68 km) |
| Prineville to Matosinhos | 5,190.71 mi (8,353.65 km) |
| Prineville to Mealhada | 5,239.98 mi (8,432.93 km) |
| Prineville to Melgaco | 5,159.09 mi (8,302.76 km) |
| Prineville to Melres | 5,207.28 mi (8,380.30 km) |
| Prineville to Mira | 5,227.27 mi (8,412.48 km) |
| Prineville to Miranda do Corvo | 5,258.49 mi (8,462.73 km) |
| Prineville to Mirandela | 5,229.09 mi (8,415.41 km) |
| Prineville to Mogadouro | 5,253.10 mi (8,454.05 km) |
| Prineville to Moimenta da Beira | 5,239.59 mi (8,432.31 km) |
| Prineville to Moita | 5,308.14 mi (8,542.63 km) |
| Prineville to Moncao | 5,153.78 mi (8,294.20 km) |
