| Ankeny to Sinop | 5,827.52 mi (9,378.49 km) |
| Ankeny to Siran | 6,049.38 mi (9,735.54 km) |
| Ankeny to Sirnak | 6,300.99 mi (10,140.46 km) |
| Ankeny to Sirvan | 6,256.67 mi (10,069.14 km) |
| Ankeny to Sivas | 6,012.23 mi (9,675.74 km) |
| Ankeny to Sivasli | 5,847.41 mi (9,410.50 km) |
| Ankeny to Siverek | 6,196.01 mi (9,971.51 km) |
| Ankeny to Sivrice | 6,155.55 mi (9,906.39 km) |
| Ankeny to Sivrihisar | 5,856.74 mi (9,425.52 km) |
| Ankeny to Sogut | 5,781.30 mi (9,304.10 km) |
| Ankeny to Sogutlu | 5,743.57 mi (9,243.39 km) |
| Ankeny to Soke | 5,808.06 mi (9,347.18 km) |
| Ankeny to Solhan | 6,175.80 mi (9,938.99 km) |
| Ankeny to Soma | 5,738.91 mi (9,235.88 km) |
| Ankeny to Sorgun | 5,952.81 mi (9,580.12 km) |
