| Western Springs to Sinop | 5,645.39 mi (9,085.38 km) |
| Western Springs to Siran | 5,872.69 mi (9,451.18 km) |
| Western Springs to Sirnak | 6,127.02 mi (9,860.48 km) |
| Western Springs to Sirvan | 6,082.74 mi (9,789.23 km) |
| Western Springs to Sivas | 5,829.14 mi (9,381.10 km) |
| Western Springs to Sivasli | 5,643.98 mi (9,083.11 km) |
| Western Springs to Siverek | 6,014.13 mi (9,678.80 km) |
| Western Springs to Sivrice | 5,975.26 mi (9,616.25 km) |
| Western Springs to Sivrihisar | 5,659.84 mi (9,108.63 km) |
| Western Springs to Sogut | 5,582.72 mi (8,984.52 km) |
| Western Springs to Sogutlu | 5,547.85 mi (8,928.40 km) |
| Western Springs to Soke | 5,597.91 mi (9,008.97 km) |
| Western Springs to Solhan | 6,001.31 mi (9,658.18 km) |
| Western Springs to Soma | 5,532.66 mi (8,903.96 km) |
| Western Springs to Sorgun | 5,765.39 mi (9,278.50 km) |
