| Washougal to Sesimbra | 5,308.83 mi (8,543.74 km) |
| Washougal to Setubal | 5,312.04 mi (8,548.90 km) |
| Washougal to Sever do Vouga | 5,215.82 mi (8,394.06 km) |
| Washougal to Silves | 5,397.99 mi (8,687.22 km) |
| Washougal to Sines | 5,342.66 mi (8,598.18 km) |
| Washougal to Sintra | 5,280.11 mi (8,497.51 km) |
| Washougal to Sobrado de Paiva | 5,203.71 mi (8,374.57 km) |
| Washougal to Sobral de Monte Agraco | 5,277.20 mi (8,492.83 km) |
| Washougal to Soure | 5,242.00 mi (8,436.18 km) |
| Washougal to Tabua | 5,246.89 mi (8,444.05 km) |
| Washougal to Tavira | 5,429.96 mi (8,738.68 km) |
| Washougal to Tomar | 5,272.95 mi (8,485.99 km) |
| Washougal to Tondela | 5,236.87 mi (8,427.94 km) |
| Washougal to Torre de Moncorvo | 5,233.79 mi (8,422.97 km) |
| Washougal to Torres Novas | 5,275.78 mi (8,490.55 km) |
