| Sioux City to Savignano sul Rubicone | 5,014.32 mi (8,069.77 km) |
| Sioux City to Savona | 4,859.93 mi (7,821.30 km) |
| Sioux City to Scafati | 5,252.39 mi (8,452.91 km) |
| Sioux City to Scalea | 5,345.67 mi (8,603.02 km) |
| Sioux City to Scandiano | 4,928.61 mi (7,931.84 km) |
| Sioux City to Scandicci | 4,985.91 mi (8,024.05 km) |
| Sioux City to Schio | 4,901.12 mi (7,887.59 km) |
| Sioux City to Sciacca | 5,355.34 mi (8,618.58 km) |
| Sioux City to Scicli | 5,453.22 mi (8,776.10 km) |
| Sioux City to Scordia | 5,433.86 mi (8,744.95 km) |
| Sioux City to Scorze | 4,934.53 mi (7,941.35 km) |
| Sioux City to Sedico | 4,908.83 mi (7,900.00 km) |
| Sioux City to Sedriano | 4,824.87 mi (7,764.89 km) |
| Sioux City to Segni | 5,151.42 mi (8,290.41 km) |
| Sioux City to Segrate | 4,836.61 mi (7,783.78 km) |
