| Ath to Montemor-o-Novo | 1,012.52 mi (1,629.49 km) |
| Ath to Montemor-o-Velho | 938.82 mi (1,510.88 km) |
| Ath to Montijo | 1,030.14 mi (1,657.85 km) |
| Ath to Mortagua | 910.05 mi (1,464.59 km) |
| Ath to Moura | 1,022.55 mi (1,645.64 km) |
| Ath to Murtosa | 905.70 mi (1,457.58 km) |
| Ath to Nazare | 982.52 mi (1,581.21 km) |
| Ath to Nelas | 893.75 mi (1,438.36 km) |
| Ath to Obidos | 999.01 mi (1,607.76 km) |
| Ath to Odemira | 1,087.43 mi (1,750.06 km) |
| Ath to Odivelas | 1,032.18 mi (1,661.13 km) |
| Ath to Oeiras | 1,042.42 mi (1,677.61 km) |
| Ath to Olhao | 1,100.06 mi (1,770.38 km) |
| Ath to Oliveira de Azemeis | 894.83 mi (1,440.09 km) |
| Ath to Oliveira de Frades | 892.62 mi (1,436.53 km) |
