| Sioux City to Sosnowiec | 4,943.01 mi (7,955.00 km) |
| Sioux City to Srem | 4,790.12 mi (7,708.95 km) |
| Sioux City to Sroda Slaska | 4,821.51 mi (7,759.48 km) |
| Sioux City to Sroda Wielkopolska | 4,791.43 mi (7,711.07 km) |
| Sioux City to Stalowa Wola | 5,017.50 mi (8,074.88 km) |
| Sioux City to Starachowice | 4,963.77 mi (7,988.42 km) |
| Sioux City to Stargard Szczecinski | 4,671.34 mi (7,517.80 km) |
| Sioux City to Starogard Gdanski | 4,745.60 mi (7,637.31 km) |
| Sioux City to Stary Sacz | 5,025.27 mi (8,087.40 km) |
| Sioux City to Staszow | 4,991.16 mi (8,032.49 km) |
| Sioux City to Strzegom | 4,823.01 mi (7,761.88 km) |
| Sioux City to Strzelce Krajenskie | 4,707.41 mi (7,575.85 km) |
| Sioux City to Strzelce Opolskie | 4,905.99 mi (7,895.43 km) |
| Sioux City to Strzelin | 4,854.24 mi (7,812.14 km) |
| Sioux City to Strzyzow | 5,044.13 mi (8,117.74 km) |
