| Donegal to Klaukkala | 1,266.45 mi (2,038.16 km) |
| Donegal to Kokkola | 1,254.73 mi (2,019.29 km) |
| Donegal to Kontiolahti | 1,446.48 mi (2,327.89 km) |
| Donegal to Korsholm | 1,198.06 mi (1,928.09 km) |
| Donegal to Kotka | 1,341.41 mi (2,158.79 km) |
| Donegal to Kouvola | 1,334.54 mi (2,147.73 km) |
| Donegal to Kuhmo | 1,447.90 mi (2,330.17 km) |
| Donegal to Kuopio | 1,379.38 mi (2,219.90 km) |
| Donegal to Kurikka | 1,211.76 mi (1,950.14 km) |
| Donegal to Kuusamo | 1,463.95 mi (2,356.00 km) |
| Donegal to Kuusankoski | 1,331.99 mi (2,143.63 km) |
| Donegal to Lahti | 1,299.74 mi (2,091.73 km) |
| Donegal to Laitila | 1,167.22 mi (1,878.45 km) |
| Donegal to Lapinlahti | 1,375.15 mi (2,213.09 km) |
| Donegal to Lappeenranta | 1,384.72 mi (2,228.49 km) |
