| Delfzijl to Montemor-o-Novo | 1,242.25 mi (1,999.20 km) |
| Delfzijl to Montemor-o-Velho | 1,166.48 mi (1,877.26 km) |
| Delfzijl to Montijo | 1,259.17 mi (2,026.44 km) |
| Delfzijl to Mortagua | 1,138.03 mi (1,831.48 km) |
| Delfzijl to Moura | 1,252.99 mi (2,016.49 km) |
| Delfzijl to Murtosa | 1,132.57 mi (1,822.70 km) |
| Delfzijl to Nazare | 1,210.36 mi (1,947.88 km) |
| Delfzijl to Nelas | 1,122.18 mi (1,805.97 km) |
| Delfzijl to Obidos | 1,227.02 mi (1,974.71 km) |
| Delfzijl to Odemira | 1,317.45 mi (2,120.22 km) |
| Delfzijl to Odivelas | 1,260.79 mi (2,029.04 km) |
| Delfzijl to Oeiras | 1,270.97 mi (2,045.42 km) |
| Delfzijl to Olhao | 1,330.61 mi (2,141.40 km) |
| Delfzijl to Oliveira de Azemeis | 1,121.80 mi (1,805.37 km) |
| Delfzijl to Oliveira de Frades | 1,120.27 mi (1,802.90 km) |
