| Neath to Mangualde | 786.65 mi (1,266.00 km) |
| Neath to Marco de Canavezes | 752.46 mi (1,210.96 km) |
| Neath to Marinha Grande | 858.69 mi (1,381.92 km) |
| Neath to Massama | 929.70 mi (1,496.21 km) |
| Neath to Matosinhos | 759.98 mi (1,223.06 km) |
| Neath to Mealhada | 809.90 mi (1,303.40 km) |
| Neath to Melgaco | 691.81 mi (1,113.36 km) |
| Neath to Melres | 763.55 mi (1,228.82 km) |
| Neath to Mira | 810.35 mi (1,304.13 km) |
| Neath to Miranda do Corvo | 827.41 mi (1,331.58 km) |
| Neath to Mirandela | 720.81 mi (1,160.03 km) |
| Neath to Mogadouro | 726.62 mi (1,169.38 km) |
| Neath to Moimenta da Beira | 759.66 mi (1,222.55 km) |
| Neath to Moita | 932.97 mi (1,501.47 km) |
| Neath to Moncao | 697.78 mi (1,122.96 km) |
