| Oregon to Sesimbra | 3,811.33 mi (6,133.74 km) |
| Oregon to Setubal | 3,818.46 mi (6,145.21 km) |
| Oregon to Sever do Vouga | 3,770.95 mi (6,068.75 km) |
| Oregon to Silves | 3,885.24 mi (6,252.68 km) |
| Oregon to Sines | 3,838.86 mi (6,178.05 km) |
| Oregon to Sintra | 3,785.88 mi (6,092.79 km) |
| Oregon to Sobrado de Paiva | 3,765.99 mi (6,060.77 km) |
| Oregon to Sobral de Monte Agraco | 3,789.86 mi (6,099.19 km) |
| Oregon to Soure | 3,780.55 mi (6,084.21 km) |
| Oregon to Tabua | 3,798.65 mi (6,113.33 km) |
| Oregon to Tavira | 3,925.31 mi (6,317.18 km) |
| Oregon to Tomar | 3,805.35 mi (6,124.12 km) |
| Oregon to Tondela | 3,791.07 mi (6,101.14 km) |
| Oregon to Torre de Moncorvo | 3,812.89 mi (6,136.26 km) |
| Oregon to Torres Novas | 3,804.25 mi (6,122.35 km) |
