| River Ridge to Sesimbra | 4,523.27 mi (7,279.51 km) |
| River Ridge to Setubal | 4,531.92 mi (7,293.42 km) |
| River Ridge to Sever do Vouga | 4,507.30 mi (7,253.80 km) |
| River Ridge to Silves | 4,587.12 mi (7,382.26 km) |
| River Ridge to Sines | 4,546.81 mi (7,317.38 km) |
| River Ridge to Sintra | 4,500.34 mi (7,242.60 km) |
| River Ridge to Sobrado de Paiva | 4,505.44 mi (7,250.80 km) |
| River Ridge to Sobral de Monte Agraco | 4,507.27 mi (7,253.75 km) |
| River Ridge to Soure | 4,509.63 mi (7,257.54 km) |
| River Ridge to Tabua | 4,532.56 mi (7,294.45 km) |
| River Ridge to Tavira | 4,629.45 mi (7,450.38 km) |
| River Ridge to Tomar | 4,530.83 mi (7,291.67 km) |
| River Ridge to Tondela | 4,526.27 mi (7,284.33 km) |
| River Ridge to Torre de Moncorvo | 4,557.27 mi (7,334.22 km) |
| River Ridge to Torres Novas | 4,528.08 mi (7,287.24 km) |
