| Donegal to Creutzwald | 732.46 mi (1,178.78 km) |
| Donegal to Croissy-sur-Seine | 591.77 mi (952.37 km) |
| Donegal to Croix | 545.08 mi (877.21 km) |
| Donegal to Crosne | 609.95 mi (981.62 km) |
| Donegal to Cuers | 1,014.05 mi (1,631.96 km) |
| Donegal to Cugnaux | 877.34 mi (1,411.94 km) |
| Donegal to Cusset | 776.51 mi (1,249.67 km) |
| Donegal to Dammarie-le-Lys | 625.45 mi (1,006.57 km) |
| Donegal to Dammartin-en-Goele | 600.35 mi (966.17 km) |
| Donegal to Dardilly | 832.33 mi (1,339.51 km) |
| Donegal to Darnetal | 532.50 mi (856.98 km) |
| Donegal to Dax | 819.64 mi (1,319.09 km) |
| Donegal to Decines-Charpieu | 840.45 mi (1,352.58 km) |
| Donegal to Denain | 567.81 mi (913.80 km) |
| Donegal to Deuil-la-Barre | 592.73 mi (953.90 km) |
