| Castleford to Sestu | 1,110.41 mi (1,787.04 km) |
| Castleford to Settimo Torinese | 719.68 mi (1,158.21 km) |
| Castleford to Seveso | 727.29 mi (1,170.45 km) |
| Castleford to Sezze | 1,074.52 mi (1,729.28 km) |
| Castleford to Siano | 1,161.77 mi (1,869.68 km) |
| Castleford to Siena | 920.89 mi (1,482.02 km) |
| Castleford to Signa | 887.87 mi (1,428.89 km) |
| Castleford to Silea | 823.71 mi (1,325.64 km) |
| Castleford to Silvi Paese | 1,046.38 mi (1,683.99 km) |
| Castleford to Sinalunga | 938.14 mi (1,509.79 km) |
| Castleford to Siniscola | 1,043.29 mi (1,679.02 km) |
| Castleford to Sinnai | 1,112.53 mi (1,790.44 km) |
| Castleford to Siracusa | 1,397.82 mi (2,249.57 km) |
| Castleford to Solaro | 727.35 mi (1,170.56 km) |
| Castleford to Soliera | 829.46 mi (1,334.88 km) |
