| Castellaneta to Marco de Canavezes | 1,305.80 mi (2,101.49 km) |
| Castellaneta to Marinha Grande | 1,361.68 mi (2,191.41 km) |
| Castellaneta to Massama | 1,394.17 mi (2,243.70 km) |
| Castellaneta to Matosinhos | 1,334.20 mi (2,147.19 km) |
| Castellaneta to Mealhada | 1,328.91 mi (2,138.67 km) |
| Castellaneta to Melgaco | 1,305.82 mi (2,101.51 km) |
| Castellaneta to Melres | 1,319.68 mi (2,123.83 km) |
| Castellaneta to Mira | 1,343.09 mi (2,161.49 km) |
| Castellaneta to Miranda do Corvo | 1,326.04 mi (2,134.06 km) |
| Castellaneta to Mirandela | 1,253.66 mi (2,017.57 km) |
| Castellaneta to Mogadouro | 1,230.68 mi (1,980.58 km) |
| Castellaneta to Moimenta da Beira | 1,279.74 mi (2,059.55 km) |
| Castellaneta to Moita | 1,380.67 mi (2,221.97 km) |
| Castellaneta to Moncao | 1,316.94 mi (2,119.41 km) |
| Castellaneta to Montalegre | 1,283.01 mi (2,064.80 km) |
