| Letterkenny to Chaudfontaine | 633.31 mi (1,019.21 km) |
| Letterkenny to Chaumont-Gistoux | 595.34 mi (958.10 km) |
| Letterkenny to Chimay | 608.01 mi (978.50 km) |
| Letterkenny to Ciney | 625.19 mi (1,006.14 km) |
| Letterkenny to Colfontaine | 576.67 mi (928.06 km) |
| Letterkenny to Courcelles | 592.97 mi (954.29 km) |
| Letterkenny to Court-Saint-Etienne | 592.73 mi (953.90 km) |
| Letterkenny to Couvin | 613.81 mi (987.83 km) |
| Letterkenny to Damme | 522.56 mi (840.97 km) |
| Letterkenny to De Haan | 512.70 mi (825.10 km) |
| Letterkenny to De Panne | 503.78 mi (810.75 km) |
| Letterkenny to De Pinte | 545.40 mi (877.74 km) |
| Letterkenny to Deerlijk | 540.69 mi (870.15 km) |
| Letterkenny to Deinze | 541.88 mi (872.08 km) |
| Letterkenny to Denderleeuw | 565.52 mi (910.12 km) |
