| Didymoteicho to Montemor-o-Novo | 1,834.64 mi (2,952.56 km) |
| Didymoteicho to Montemor-o-Velho | 1,830.50 mi (2,945.91 km) |
| Didymoteicho to Montijo | 1,869.21 mi (3,008.21 km) |
| Didymoteicho to Mortagua | 1,803.07 mi (2,901.76 km) |
| Didymoteicho to Moura | 1,805.71 mi (2,906.01 km) |
| Didymoteicho to Murtosa | 1,818.74 mi (2,926.98 km) |
| Didymoteicho to Nazare | 1,860.13 mi (2,993.59 km) |
| Didymoteicho to Nelas | 1,782.14 mi (2,868.08 km) |
| Didymoteicho to Obidos | 1,869.30 mi (3,008.34 km) |
| Didymoteicho to Odemira | 1,878.97 mi (3,023.91 km) |
| Didymoteicho to Odivelas | 1,881.47 mi (3,027.94 km) |
| Didymoteicho to Oeiras | 1,890.70 mi (3,042.78 km) |
| Didymoteicho to Olhao | 1,850.80 mi (2,978.57 km) |
| Didymoteicho to Oliveira de Azemeis | 1,809.02 mi (2,911.34 km) |
| Didymoteicho to Oliveira de Frades | 1,796.04 mi (2,890.45 km) |
