| Sunne to Mangualde | 1,603.12 mi (2,579.97 km) |
| Sunne to Marco de Canavezes | 1,577.04 mi (2,538.00 km) |
| Sunne to Marinha Grande | 1,683.87 mi (2,709.93 km) |
| Sunne to Massama | 1,753.34 mi (2,821.73 km) |
| Sunne to Matosinhos | 1,590.60 mi (2,559.82 km) |
| Sunne to Mealhada | 1,633.26 mi (2,628.49 km) |
| Sunne to Melgaco | 1,523.33 mi (2,451.55 km) |
| Sunne to Melres | 1,590.27 mi (2,559.30 km) |
| Sunne to Mira | 1,637.11 mi (2,634.67 km) |
| Sunne to Miranda do Corvo | 1,647.85 mi (2,651.95 km) |
| Sunne to Mirandela | 1,535.17 mi (2,470.62 km) |
| Sunne to Mogadouro | 1,533.52 mi (2,467.96 km) |
| Sunne to Moimenta da Beira | 1,576.52 mi (2,537.16 km) |
| Sunne to Moita | 1,752.97 mi (2,821.13 km) |
| Sunne to Moncao | 1,531.29 mi (2,464.38 km) |
