| Sioux City to Selargius | 5,118.07 mi (8,236.73 km) |
| Sioux City to Selvazzano Dentro | 4,931.66 mi (7,936.75 km) |
| Sioux City to Senago | 4,826.47 mi (7,767.45 km) |
| Sioux City to Senigallia | 5,061.99 mi (8,146.48 km) |
| Sioux City to Seravezza | 4,939.21 mi (7,948.89 km) |
| Sioux City to Seregno | 4,825.89 mi (7,766.52 km) |
| Sioux City to Seriate | 4,843.19 mi (7,794.37 km) |
| Sioux City to Sermoneta | 5,156.55 mi (8,298.67 km) |
| Sioux City to Serramanna | 5,100.76 mi (8,208.88 km) |
| Sioux City to Serravalle Pistoiese | 4,966.01 mi (7,992.02 km) |
| Sioux City to Sessa Aurunca | 5,207.14 mi (8,380.08 km) |
| Sioux City to Sesto Calende | 4,801.40 mi (7,727.10 km) |
| Sioux City to Sesto Fiorentino | 4,982.63 mi (8,018.76 km) |
| Sioux City to Sesto San Giovanni | 4,832.38 mi (7,776.97 km) |
| Sioux City to Sestri Levante | 4,895.52 mi (7,878.57 km) |
