| Severn to Sinop | 5,388.38 mi (8,671.76 km) |
| Severn to Siran | 5,625.54 mi (9,053.44 km) |
| Severn to Sirnak | 5,882.72 mi (9,467.33 km) |
| Severn to Sirvan | 5,839.20 mi (9,397.28 km) |
| Severn to Sivas | 5,567.16 mi (8,959.48 km) |
| Severn to Sivasli | 5,334.02 mi (8,584.28 km) |
| Severn to Siverek | 5,752.44 mi (9,257.65 km) |
| Severn to Sivrice | 5,717.98 mi (9,202.20 km) |
| Severn to Sivrihisar | 5,366.09 mi (8,635.89 km) |
| Severn to Sogut | 5,285.82 mi (8,506.71 km) |
| Severn to Sogutlu | 5,258.60 mi (8,462.89 km) |
| Severn to Soke | 5,271.39 mi (8,483.49 km) |
| Severn to Solhan | 5,757.60 mi (9,265.97 km) |
| Severn to Soma | 5,216.99 mi (8,395.94 km) |
| Severn to Sorgun | 5,493.70 mi (8,841.25 km) |
