| Sumner to Sinop | 6,116.93 mi (9,844.25 km) |
| Sumner to Siran | 6,289.67 mi (10,122.25 km) |
| Sumner to Sirnak | 6,505.99 mi (10,470.38 km) |
| Sumner to Sirvan | 6,464.79 mi (10,404.07 km) |
| Sumner to Sivas | 6,293.65 mi (10,128.65 km) |
| Sumner to Sivasli | 6,267.27 mi (10,086.20 km) |
| Sumner to Siverek | 6,456.44 mi (10,390.64 km) |
| Sumner to Sivrice | 6,409.37 mi (10,314.89 km) |
| Sumner to Sivrihisar | 6,234.66 mi (10,033.71 km) |
| Sumner to Sogut | 6,175.12 mi (9,937.90 km) |
| Sumner to Sogutlu | 6,122.25 mi (9,852.81 km) |
| Sumner to Soke | 6,274.05 mi (10,097.11 km) |
| Sumner to Solhan | 6,393.41 mi (10,289.20 km) |
| Sumner to Soma | 6,184.40 mi (9,952.83 km) |
| Sumner to Sorgun | 6,265.02 mi (10,082.58 km) |
