| Donegal to Hameenkyro | 1,224.25 mi (1,970.24 km) |
| Donegal to Hameenlinna | 1,260.31 mi (2,028.28 km) |
| Donegal to Hamina | 1,350.40 mi (2,173.25 km) |
| Donegal to Hanko | 1,202.85 mi (1,935.80 km) |
| Donegal to Hattula | 1,257.55 mi (2,023.82 km) |
| Donegal to Haukipudas | 1,344.00 mi (2,162.97 km) |
| Donegal to Hausjarvi | 1,277.74 mi (2,056.32 km) |
| Donegal to Heinola | 1,313.69 mi (2,114.19 km) |
| Donegal to Helsinki | 1,272.10 mi (2,047.25 km) |
| Donegal to Hollola | 1,295.19 mi (2,084.40 km) |
| Donegal to Huittinen | 1,203.20 mi (1,936.37 km) |
| Donegal to Hyvinkaa | 1,271.04 mi (2,045.54 km) |
| Donegal to Ii | 1,347.29 mi (2,168.26 km) |
| Donegal to Iisalmi | 1,371.40 mi (2,207.06 km) |
| Donegal to Ilmajoki | 1,219.24 mi (1,962.18 km) |
