| Didcot to Sereflikochisar | 1,879.72 mi (3,025.12 km) |
| Didcot to Serik | 1,871.76 mi (3,012.30 km) |
| Didcot to Serinhisar | 1,766.92 mi (2,843.58 km) |
| Didcot to Serinyol | 2,105.98 mi (3,389.24 km) |
| Didcot to Seydisehir | 1,878.70 mi (3,023.47 km) |
| Didcot to Seyhan | 2,041.77 mi (3,285.91 km) |
| Didcot to Seyitgazi | 1,739.79 mi (2,799.92 km) |
| Didcot to Siirt | 2,278.23 mi (3,666.46 km) |
| Didcot to Sile | 1,621.10 mi (2,608.90 km) |
| Didcot to Silifke | 2,012.19 mi (3,238.31 km) |
| Didcot to Silivri | 1,568.84 mi (2,524.80 km) |
| Didcot to Silopi | 2,329.96 mi (3,749.71 km) |
| Didcot to Simav | 1,685.95 mi (2,713.28 km) |
| Didcot to Sinanpasa | 1,752.55 mi (2,820.46 km) |
| Didcot to Sindirgi | 1,646.13 mi (2,649.19 km) |
