| Donegal to Illzach | 817.49 mi (1,315.62 km) |
| Donegal to Ingre | 631.85 mi (1,016.87 km) |
| Donegal to Irigny | 841.61 mi (1,354.44 km) |
| Donegal to Isbergues | 522.49 mi (840.87 km) |
| Donegal to Issoire | 803.93 mi (1,293.80 km) |
| Donegal to Issoudun | 690.08 mi (1,110.57 km) |
| Donegal to Issy-les-Moulineaux | 598.48 mi (963.16 km) |
| Donegal to Istres | 968.14 mi (1,558.07 km) |
| Donegal to Ivry-sur-Seine | 602.58 mi (969.77 km) |
| Donegal to Jarville-la-Malgrange | 737.74 mi (1,187.28 km) |
| Donegal to Jeumont | 594.52 mi (956.78 km) |
| Donegal to Joigny | 676.26 mi (1,088.34 km) |
| Donegal to Joinville-le-Pont | 605.02 mi (973.68 km) |
| Donegal to Joue-les-Tours | 631.50 mi (1,016.30 km) |
| Donegal to Jouy-le-Moutier | 581.89 mi (936.46 km) |
