| Letterkenny to Imatra | 1,380.02 mi (2,220.93 km) |
| Letterkenny to Jakobstad | 1,213.27 mi (1,952.56 km) |
| Letterkenny to Jamsa | 1,265.93 mi (2,037.32 km) |
| Letterkenny to Janakkala | 1,241.55 mi (1,998.07 km) |
| Letterkenny to Jarvenpaa | 1,254.36 mi (2,018.70 km) |
| Letterkenny to Joensuu | 1,417.31 mi (2,280.94 km) |
| Letterkenny to Joutseno | 1,371.06 mi (2,206.51 km) |
| Letterkenny to Jyvaskyla | 1,287.20 mi (2,071.55 km) |
| Letterkenny to Jyvaskylan Maalaiskunta | 1,287.64 mi (2,072.26 km) |
| Letterkenny to Kaarina | 1,161.35 mi (1,869.01 km) |
| Letterkenny to Kajaani | 1,370.41 mi (2,205.47 km) |
| Letterkenny to Kalajoki | 1,260.92 mi (2,029.26 km) |
| Letterkenny to Kangasala | 1,226.09 mi (1,973.21 km) |
| Letterkenny to Kankaanpaa | 1,175.49 mi (1,891.77 km) |
| Letterkenny to Karhula | 1,317.16 mi (2,119.77 km) |
