| Castleford to Karis | 1,032.94 mi (1,662.36 km) |
| Castleford to Karkkila | 1,059.31 mi (1,704.79 km) |
| Castleford to Kauhajoki | 1,040.33 mi (1,674.24 km) |
| Castleford to Kauhava | 1,085.23 mi (1,746.51 km) |
| Castleford to Kauniainen | 1,071.11 mi (1,723.78 km) |
| Castleford to Kemi | 1,210.52 mi (1,948.14 km) |
| Castleford to Kemijarvi | 1,313.56 mi (2,113.97 km) |
| Castleford to Kempele | 1,206.88 mi (1,942.29 km) |
| Castleford to Kerava | 1,086.23 mi (1,748.12 km) |
| Castleford to Keuruu | 1,110.79 mi (1,787.65 km) |
| Castleford to Kiiminki | 1,220.76 mi (1,964.63 km) |
| Castleford to Kirkkonummi | 1,058.94 mi (1,704.19 km) |
| Castleford to Kitee | 1,275.60 mi (2,052.88 km) |
| Castleford to Kiuruvesi | 1,201.17 mi (1,933.09 km) |
| Castleford to Kivisto | 1,076.54 mi (1,732.53 km) |
