| Westchase to Sinop | 6,180.49 mi (9,946.54 km) |
| Westchase to Siran | 6,420.61 mi (10,332.98 km) |
| Westchase to Sirnak | 6,677.32 mi (10,746.12 km) |
| Westchase to Sirvan | 6,634.45 mi (10,677.11 km) |
| Westchase to Sivas | 6,355.49 mi (10,228.17 km) |
| Westchase to Sivasli | 6,097.00 mi (9,812.17 km) |
| Westchase to Siverek | 6,539.50 mi (10,524.31 km) |
| Westchase to Sivrice | 6,507.52 mi (10,472.84 km) |
| Westchase to Sivrihisar | 6,138.76 mi (9,879.37 km) |
| Westchase to Sogut | 6,057.34 mi (9,748.35 km) |
| Westchase to Sogutlu | 6,034.83 mi (9,712.12 km) |
| Westchase to Soke | 6,023.94 mi (9,694.59 km) |
| Westchase to Solhan | 6,553.34 mi (10,546.58 km) |
| Westchase to Soma | 5,977.44 mi (9,619.75 km) |
| Westchase to Sorgun | 6,277.60 mi (10,102.82 km) |
