| Letterkenny to Mouscron | 540.80 mi (870.34 km) |
| Letterkenny to Namur | 610.12 mi (981.90 km) |
| Letterkenny to Neder-Over-Heembeek | 575.70 mi (926.50 km) |
| Letterkenny to Neerpelt | 602.09 mi (968.97 km) |
| Letterkenny to Nevele | 540.52 mi (869.88 km) |
| Letterkenny to Niel | 565.68 mi (910.37 km) |
| Letterkenny to Nieuwpoort | 508.76 mi (818.76 km) |
| Letterkenny to Nijlen | 575.44 mi (926.08 km) |
| Letterkenny to Ninove | 565.09 mi (909.43 km) |
| Letterkenny to Nivelles | 585.78 mi (942.72 km) |
| Letterkenny to Olen | 583.42 mi (938.92 km) |
| Letterkenny to Oostakker | 545.73 mi (878.27 km) |
| Letterkenny to Oosterzele | 552.74 mi (889.55 km) |
| Letterkenny to Oostkamp | 524.52 mi (844.14 km) |
| Letterkenny to Opglabbeek | 614.17 mi (988.40 km) |
