| Potomac to Sereflikochisar | 5,494.98 mi (8,843.31 km) |
| Potomac to Serik | 5,489.35 mi (8,834.26 km) |
| Potomac to Serinhisar | 5,383.21 mi (8,663.45 km) |
| Potomac to Serinyol | 5,722.87 mi (9,210.07 km) |
| Potomac to Seydisehir | 5,497.31 mi (8,847.07 km) |
| Potomac to Seyhan | 5,658.71 mi (9,106.81 km) |
| Potomac to Seyitgazi | 5,357.91 mi (8,622.72 km) |
| Potomac to Siirt | 5,867.73 mi (9,443.19 km) |
| Potomac to Sile | 5,237.08 mi (8,428.27 km) |
| Potomac to Silifke | 5,630.85 mi (9,061.98 km) |
| Potomac to Silivri | 5,186.82 mi (8,347.37 km) |
| Potomac to Silopi | 5,921.53 mi (9,529.79 km) |
| Potomac to Simav | 5,304.39 mi (8,536.60 km) |
| Potomac to Sinanpasa | 5,371.22 mi (8,644.14 km) |
| Potomac to Sindirgi | 5,264.17 mi (8,471.87 km) |
