| Castelo Branco to Karditsa | 1,559.46 mi (2,509.71 km) |
| Castelo Branco to Kastoria | 1,512.87 mi (2,434.73 km) |
| Castelo Branco to Katerini | 1,579.57 mi (2,542.07 km) |
| Castelo Branco to Keratsini | 1,669.83 mi (2,687.33 km) |
| Castelo Branco to Kerkyra | 1,451.61 mi (2,336.14 km) |
| Castelo Branco to Kiato | 1,623.28 mi (2,612.41 km) |
| Castelo Branco to Kifisia | 1,678.43 mi (2,701.17 km) |
| Castelo Branco to Kilkis | 1,591.79 mi (2,561.74 km) |
| Castelo Branco to Komotini | 1,722.45 mi (2,772.02 km) |
| Castelo Branco to Korinthos | 1,633.87 mi (2,629.47 km) |
| Castelo Branco to Koropi | 1,684.51 mi (2,710.96 km) |
| Castelo Branco to Korydallos | 1,671.30 mi (2,689.70 km) |
| Castelo Branco to Kos | 1,881.74 mi (3,028.36 km) |
| Castelo Branco to Kozani | 1,541.87 mi (2,481.39 km) |
| Castelo Branco to Lagos | 1,702.57 mi (2,740.02 km) |
