| Grande-Synthe to Setubal | 1,020.32 mi (1,642.05 km) |
| Grande-Synthe to Sever do Vouga | 874.44 mi (1,407.27 km) |
| Grande-Synthe to Silves | 1,091.36 mi (1,756.38 km) |
| Grande-Synthe to Sines | 1,054.32 mi (1,696.76 km) |
| Grande-Synthe to Sintra | 1,016.89 mi (1,636.52 km) |
| Grande-Synthe to Sobrado de Paiva | 854.13 mi (1,374.59 km) |
| Grande-Synthe to Sobral de Monte Agraco | 997.44 mi (1,605.22 km) |
| Grande-Synthe to Soure | 921.99 mi (1,483.80 km) |
| Grande-Synthe to Tabua | 887.25 mi (1,427.88 km) |
| Grande-Synthe to Tavira | 1,077.62 mi (1,734.27 km) |
| Grande-Synthe to Tomar | 942.98 mi (1,517.58 km) |
| Grande-Synthe to Tondela | 879.41 mi (1,415.28 km) |
| Grande-Synthe to Torre de Moncorvo | 813.48 mi (1,309.17 km) |
| Grande-Synthe to Torres Novas | 954.06 mi (1,535.41 km) |
| Grande-Synthe to Torres Vedras | 996.64 mi (1,603.94 km) |
