| Castleford to Karditsa | 1,472.93 mi (2,370.45 km) |
| Castleford to Kastoria | 1,390.25 mi (2,237.39 km) |
| Castleford to Katerini | 1,446.35 mi (2,327.68 km) |
| Castleford to Keratsini | 1,605.92 mi (2,584.48 km) |
| Castleford to Kerkyra | 1,391.77 mi (2,239.83 km) |
| Castleford to Kiato | 1,573.89 mi (2,532.93 km) |
| Castleford to Kifisia | 1,606.62 mi (2,585.60 km) |
| Castleford to Kilkis | 1,423.13 mi (2,290.30 km) |
| Castleford to Komotini | 1,510.87 mi (2,431.51 km) |
| Castleford to Korinthos | 1,583.80 mi (2,548.89 km) |
| Castleford to Koropi | 1,618.35 mi (2,604.49 km) |
| Castleford to Korydallos | 1,606.19 mi (2,584.91 km) |
| Castleford to Kos | 1,792.33 mi (2,884.48 km) |
| Castleford to Kozani | 1,419.46 mi (2,284.41 km) |
| Castleford to Lagos | 1,497.92 mi (2,410.67 km) |
