| Fort Lewis to Sinop | 6,129.56 mi (9,864.57 km) |
| Fort Lewis to Siran | 6,301.74 mi (10,141.67 km) |
| Fort Lewis to Sirnak | 6,517.59 mi (10,489.04 km) |
| Fort Lewis to Sirvan | 6,476.44 mi (10,422.82 km) |
| Fort Lewis to Sivas | 6,306.09 mi (10,148.68 km) |
| Fort Lewis to Sivasli | 6,280.95 mi (10,108.21 km) |
| Fort Lewis to Siverek | 6,468.59 mi (10,410.20 km) |
| Fort Lewis to Sivrice | 6,421.49 mi (10,334.39 km) |
| Fort Lewis to Sivrihisar | 6,247.99 mi (10,055.17 km) |
| Fort Lewis to Sogut | 6,188.63 mi (9,959.63 km) |
| Fort Lewis to Sogutlu | 6,135.65 mi (9,874.38 km) |
| Fort Lewis to Soke | 6,288.10 mi (10,119.73 km) |
| Fort Lewis to Solhan | 6,405.20 mi (10,308.17 km) |
| Fort Lewis to Soma | 6,198.33 mi (9,975.25 km) |
| Fort Lewis to Sorgun | 6,277.77 mi (10,103.09 km) |
