| Donegal to Kecskemet | 1,315.99 mi (2,117.88 km) |
| Donegal to Kerepestarcsa | 1,274.82 mi (2,051.63 km) |
| Donegal to Keszthely | 1,226.76 mi (1,974.28 km) |
| Donegal to Kiskoros | 1,311.41 mi (2,110.51 km) |
| Donegal to Kiskunfelegyhaza | 1,330.09 mi (2,140.57 km) |
| Donegal to Kiskunhalas | 1,326.86 mi (2,135.38 km) |
| Donegal to Kiskunlachaza | 1,278.37 mi (2,057.33 km) |
| Donegal to Kiskunmajsa | 1,334.10 mi (2,147.03 km) |
| Donegal to Kisujszallas | 1,346.28 mi (2,166.63 km) |
| Donegal to Kisvarda | 1,361.97 mi (2,191.88 km) |
| Donegal to Komarom | 1,223.05 mi (1,968.30 km) |
| Donegal to Komlo | 1,289.26 mi (2,074.86 km) |
| Donegal to Kormend | 1,192.39 mi (1,918.96 km) |
| Donegal to Koszeg | 1,175.66 mi (1,892.04 km) |
| Donegal to Lajosmizse | 1,306.18 mi (2,102.09 km) |
