| Letterkenny to Cesky Tesin | 1,160.66 mi (1,867.89 km) |
| Letterkenny to Cheb | 905.45 mi (1,457.19 km) |
| Letterkenny to Chocen | 1,057.94 mi (1,702.59 km) |
| Letterkenny to Chodov | 914.44 mi (1,471.64 km) |
| Letterkenny to Chomutov | 933.43 mi (1,502.20 km) |
| Letterkenny to Chotebor | 1,045.62 mi (1,682.77 km) |
| Letterkenny to Chrudim | 1,042.86 mi (1,678.32 km) |
| Letterkenny to Decin | 954.16 mi (1,535.57 km) |
| Letterkenny to Dobris | 985.12 mi (1,585.39 km) |
| Letterkenny to Domazlice | 949.28 mi (1,527.72 km) |
| Letterkenny to Duchcov | 941.78 mi (1,515.65 km) |
| Letterkenny to Dvur Kralove nad Labem | 1,028.09 mi (1,654.55 km) |
| Letterkenny to Frenstat pod Radhostem | 1,150.85 mi (1,852.11 km) |
| Letterkenny to Frydek-Mistek | 1,151.80 mi (1,853.64 km) |
| Letterkenny to Frydlant nad Ostravici | 1,155.22 mi (1,859.14 km) |
