| Williamsport to Sereflikochisar | 5,385.72 mi (8,667.48 km) |
| Williamsport to Serik | 5,385.63 mi (8,667.34 km) |
| Williamsport to Serinhisar | 5,280.46 mi (8,498.08 km) |
| Williamsport to Serinyol | 5,614.37 mi (9,035.46 km) |
| Williamsport to Seydisehir | 5,392.04 mi (8,677.64 km) |
| Williamsport to Seyhan | 5,550.30 mi (8,932.35 km) |
| Williamsport to Seyitgazi | 5,250.84 mi (8,450.41 km) |
| Williamsport to Siirt | 5,751.13 mi (9,255.55 km) |
| Williamsport to Sile | 5,128.51 mi (8,253.54 km) |
| Williamsport to Silifke | 5,524.82 mi (8,891.34 km) |
| Williamsport to Silivri | 5,079.73 mi (8,175.03 km) |
| Williamsport to Silopi | 5,805.19 mi (9,342.55 km) |
| Williamsport to Simav | 5,199.63 mi (8,367.99 km) |
| Williamsport to Sinanpasa | 5,265.65 mi (8,474.24 km) |
| Williamsport to Sindirgi | 5,159.99 mi (8,304.21 km) |
