| Klamath Falls to Sesimbra | 5,444.76 mi (8,762.49 km) |
| Klamath Falls to Setubal | 5,448.55 mi (8,768.60 km) |
| Klamath Falls to Sever do Vouga | 5,358.38 mi (8,623.47 km) |
| Klamath Falls to Silves | 5,532.33 mi (8,903.43 km) |
| Klamath Falls to Sines | 5,477.92 mi (8,815.86 km) |
| Klamath Falls to Sintra | 5,416.29 mi (8,716.67 km) |
| Klamath Falls to Sobrado de Paiva | 5,347.13 mi (8,605.37 km) |
| Klamath Falls to Sobral de Monte Agraco | 5,414.34 mi (8,713.55 km) |
| Klamath Falls to Soure | 5,382.50 mi (8,662.29 km) |
| Klamath Falls to Tabua | 5,389.22 mi (8,673.12 km) |
| Klamath Falls to Tavira | 5,565.73 mi (8,957.18 km) |
| Klamath Falls to Tomar | 5,412.84 mi (8,711.12 km) |
| Klamath Falls to Tondela | 5,379.47 mi (8,657.41 km) |
| Klamath Falls to Torre de Moncorvo | 5,379.65 mi (8,657.72 km) |
| Klamath Falls to Torres Novas | 5,415.15 mi (8,714.84 km) |
