| Castleford to Somersworth (New Hampshire) | 3,131.61 mi (5,039.83 km) |
| Castleford to Somerton (Arizona) | 5,272.13 mi (8,484.67 km) |
| Castleford to Somerville (Massachusetts) | 3,177.70 mi (5,114.01 km) |
| Castleford to Somerville (New Jersey) | 3,397.46 mi (5,467.69 km) |
| Castleford to Sonoma (California) | 5,179.03 mi (8,334.84 km) |
| Castleford to Soquel (California) | 5,240.33 mi (8,433.50 km) |
| Castleford to South Bend (Indiana) | 3,792.37 mi (6,103.23 km) |
| Castleford to South Bradenton (Florida) | 4,362.49 mi (7,020.75 km) |
| Castleford to South Burlington (Vermont) | 3,170.41 mi (5,102.28 km) |
| Castleford to South Charleston (West Virginia) | 3,779.69 mi (6,082.82 km) |
| Castleford to South Daytona (Florida) | 4,210.73 mi (6,776.51 km) |
| Castleford to South El Monte (California) | 5,295.26 mi (8,521.90 km) |
| Castleford to South Elgin (Illinois) | 3,852.79 mi (6,200.47 km) |
| Castleford to South Euclid (Ohio) | 3,621.02 mi (5,827.46 km) |
| Castleford to South Farmingdale (New York) | 3,344.97 mi (5,383.21 km) |
