| Saint-Sebastien-sur-Loire to Montemor-o-Novo | 681.34 mi (1,096.51 km) |
| Saint-Sebastien-sur-Loire to Montemor-o-Velho | 603.96 mi (971.98 km) |
| Saint-Sebastien-sur-Loire to Montijo | 697.09 mi (1,121.85 km) |
| Saint-Sebastien-sur-Loire to Mortagua | 575.48 mi (926.15 km) |
| Saint-Sebastien-sur-Loire to Moura | 695.52 mi (1,119.33 km) |
| Saint-Sebastien-sur-Loire to Murtosa | 570.37 mi (917.92 km) |
| Saint-Sebastien-sur-Loire to Nazare | 647.82 mi (1,042.56 km) |
| Saint-Sebastien-sur-Loire to Nelas | 559.73 mi (900.80 km) |
| Saint-Sebastien-sur-Loire to Obidos | 664.48 mi (1,069.37 km) |
| Saint-Sebastien-sur-Loire to Odemira | 757.30 mi (1,218.75 km) |
| Saint-Sebastien-sur-Loire to Odivelas | 698.38 mi (1,123.94 km) |
| Saint-Sebastien-sur-Loire to Oeiras | 708.53 mi (1,140.27 km) |
| Saint-Sebastien-sur-Loire to Olhao | 774.27 mi (1,246.07 km) |
| Saint-Sebastien-sur-Loire to Oliveira de Azemeis | 559.54 mi (900.49 km) |
| Saint-Sebastien-sur-Loire to Oliveira de Frades | 557.75 mi (897.61 km) |
