| Letterkenny to Delitzsch | 859.37 mi (1,383.03 km) |
| Letterkenny to Delmenhorst | 675.31 mi (1,086.81 km) |
| Letterkenny to Demmin | 834.58 mi (1,343.13 km) |
| Letterkenny to Denkendorf | 843.20 mi (1,357.00 km) |
| Letterkenny to Denzlingen | 819.65 mi (1,319.10 km) |
| Letterkenny to Dessau-Rosslau | 846.71 mi (1,362.65 km) |
| Letterkenny to Detmold | 712.39 mi (1,146.48 km) |
| Letterkenny to Dettingen an der Erms | 851.26 mi (1,369.96 km) |
| Letterkenny to Dieburg | 778.05 mi (1,252.15 km) |
| Letterkenny to Diedorf | 910.50 mi (1,465.30 km) |
| Letterkenny to Dielheim | 797.85 mi (1,284.02 km) |
| Letterkenny to Diepholz | 675.02 mi (1,086.34 km) |
| Letterkenny to Diessen am Ammersee | 939.51 mi (1,512.00 km) |
| Letterkenny to Dietzenbach | 771.19 mi (1,241.11 km) |
| Letterkenny to Diez | 729.43 mi (1,173.90 km) |
