| Groslay to Setubal | 912.84 mi (1,469.08 km) |
| Groslay to Sever do Vouga | 773.36 mi (1,244.60 km) |
| Groslay to Silves | 978.04 mi (1,574.00 km) |
| Groslay to Sines | 944.88 mi (1,520.64 km) |
| Groslay to Sintra | 912.55 mi (1,468.61 km) |
| Groslay to Sobrado de Paiva | 754.01 mi (1,213.46 km) |
| Groslay to Sobral de Monte Agraco | 892.86 mi (1,436.92 km) |
| Groslay to Soure | 819.14 mi (1,318.28 km) |
| Groslay to Tabua | 782.79 mi (1,259.77 km) |
| Groslay to Tavira | 961.07 mi (1,546.69 km) |
| Groslay to Tomar | 837.26 mi (1,347.44 km) |
| Groslay to Tondela | 775.91 mi (1,248.71 km) |
| Groslay to Torre de Moncorvo | 708.24 mi (1,139.80 km) |
| Groslay to Torres Novas | 848.36 mi (1,365.31 km) |
| Groslay to Torres Vedras | 892.83 mi (1,436.87 km) |
