| Kennewick to Sinop | 6,140.07 mi (9,881.48 km) |
| Kennewick to Siran | 6,319.52 mi (10,170.28 km) |
| Kennewick to Sirnak | 6,541.22 mi (10,527.08 km) |
| Kennewick to Sirvan | 6,499.40 mi (10,459.77 km) |
| Kennewick to Sivas | 6,318.85 mi (10,169.20 km) |
| Kennewick to Sivasli | 6,276.23 mi (10,100.62 km) |
| Kennewick to Siverek | 6,485.09 mi (10,436.75 km) |
| Kennewick to Sivrice | 6,438.47 mi (10,361.71 km) |
| Kennewick to Sivrihisar | 6,248.33 mi (10,055.71 km) |
| Kennewick to Sogut | 6,186.55 mi (9,956.29 km) |
| Kennewick to Sogutlu | 6,135.11 mi (9,873.50 km) |
| Kennewick to Soke | 6,277.58 mi (10,102.78 km) |
| Kennewick to Solhan | 6,426.49 mi (10,342.43 km) |
| Kennewick to Soma | 6,189.80 mi (9,961.52 km) |
| Kennewick to Sorgun | 6,286.51 mi (10,117.16 km) |
