| Petite-Synthe to Setubal | 1,022.13 mi (1,644.95 km) |
| Petite-Synthe to Sever do Vouga | 876.32 mi (1,410.30 km) |
| Petite-Synthe to Silves | 1,093.08 mi (1,759.15 km) |
| Petite-Synthe to Sines | 1,056.10 mi (1,699.62 km) |
| Petite-Synthe to Sintra | 1,018.74 mi (1,639.50 km) |
| Petite-Synthe to Sobrado de Paiva | 856.02 mi (1,377.63 km) |
| Petite-Synthe to Sobral de Monte Agraco | 999.28 mi (1,608.19 km) |
| Petite-Synthe to Soure | 923.86 mi (1,486.80 km) |
| Petite-Synthe to Tabua | 889.08 mi (1,430.84 km) |
| Petite-Synthe to Tavira | 1,079.29 mi (1,736.94 km) |
| Petite-Synthe to Tomar | 944.81 mi (1,520.52 km) |
| Petite-Synthe to Tondela | 881.26 mi (1,418.26 km) |
| Petite-Synthe to Torre de Moncorvo | 815.30 mi (1,312.10 km) |
| Petite-Synthe to Torres Novas | 955.89 mi (1,538.35 km) |
| Petite-Synthe to Torres Vedras | 998.50 mi (1,606.92 km) |
