| Ath to Marco de Canavezes | 865.69 mi (1,393.19 km) |
| Ath to Marinha Grande | 969.96 mi (1,561.00 km) |
| Ath to Massama | 1,036.94 mi (1,668.79 km) |
| Ath to Matosinhos | 883.18 mi (1,421.34 km) |
| Ath to Mealhada | 919.49 mi (1,479.77 km) |
| Ath to Melgaco | 819.04 mi (1,318.12 km) |
| Ath to Melres | 879.98 mi (1,416.18 km) |
| Ath to Mira | 925.46 mi (1,489.38 km) |
| Ath to Miranda do Corvo | 931.93 mi (1,499.79 km) |
| Ath to Mirandela | 819.01 mi (1,318.07 km) |
| Ath to Mogadouro | 813.71 mi (1,309.54 km) |
| Ath to Moimenta da Beira | 860.47 mi (1,384.80 km) |
| Ath to Moita | 1,034.51 mi (1,664.88 km) |
| Ath to Moncao | 828.40 mi (1,333.18 km) |
| Ath to Montalegre | 819.37 mi (1,318.65 km) |
