| Castleford to Sereflikochisar | 1,924.18 mi (3,096.67 km) |
| Castleford to Serik | 1,930.62 mi (3,107.04 km) |
| Castleford to Serinhisar | 1,828.70 mi (2,943.01 km) |
| Castleford to Serinyol | 2,152.78 mi (3,464.57 km) |
| Castleford to Seydisehir | 1,933.63 mi (3,111.87 km) |
| Castleford to Seyhan | 2,088.73 mi (3,361.49 km) |
| Castleford to Seyitgazi | 1,790.12 mi (2,880.93 km) |
| Castleford to Siirt | 2,305.39 mi (3,710.16 km) |
| Castleford to Sile | 1,666.94 mi (2,682.69 km) |
| Castleford to Silifke | 2,065.03 mi (3,323.35 km) |
| Castleford to Silivri | 1,619.14 mi (2,605.75 km) |
| Castleford to Silopi | 2,358.20 mi (3,795.16 km) |
| Castleford to Simav | 1,742.75 mi (2,804.69 km) |
| Castleford to Sinanpasa | 1,806.98 mi (2,908.06 km) |
| Castleford to Sindirgi | 1,704.70 mi (2,743.45 km) |
