| Twickenham to Sereflikochisar | 1,839.39 mi (2,960.21 km) |
| Twickenham to Serik | 1,831.56 mi (2,947.61 km) |
| Twickenham to Serinhisar | 1,726.80 mi (2,779.01 km) |
| Twickenham to Serinyol | 2,065.63 mi (3,324.32 km) |
| Twickenham to Seydisehir | 1,838.42 mi (2,958.65 km) |
| Twickenham to Seyhan | 2,001.42 mi (3,220.98 km) |
| Twickenham to Seyitgazi | 1,699.45 mi (2,735.00 km) |
| Twickenham to Siirt | 2,238.28 mi (3,602.16 km) |
| Twickenham to Sile | 1,580.76 mi (2,543.98 km) |
| Twickenham to Silifke | 1,971.88 mi (3,173.44 km) |
| Twickenham to Silivri | 1,528.50 mi (2,459.88 km) |
| Twickenham to Silopi | 2,289.97 mi (3,685.34 km) |
| Twickenham to Simav | 1,645.70 mi (2,648.49 km) |
| Twickenham to Sinanpasa | 1,712.26 mi (2,755.61 km) |
| Twickenham to Sindirgi | 1,605.91 mi (2,584.46 km) |
