| Letterkenny to Friesoythe | 645.40 mi (1,038.67 km) |
| Letterkenny to Fritzlar | 751.75 mi (1,209.83 km) |
| Letterkenny to Frohburg | 881.33 mi (1,418.36 km) |
| Letterkenny to Frondenberg | 682.72 mi (1,098.72 km) |
| Letterkenny to Fulda | 785.92 mi (1,264.81 km) |
| Letterkenny to Fuldabruck | 755.33 mi (1,215.58 km) |
| Letterkenny to Fuldatal | 754.47 mi (1,214.20 km) |
| Letterkenny to Furstenau | 649.56 mi (1,045.36 km) |
| Letterkenny to Furstenfeldbruck | 935.61 mi (1,505.72 km) |
| Letterkenny to Furstenwalde | 905.84 mi (1,457.81 km) |
| Letterkenny to Furth | 785.00 mi (1,263.34 km) |
| Letterkenny to Furth | 875.02 mi (1,408.20 km) |
| Letterkenny to Furth im Wald | 950.71 mi (1,530.01 km) |
| Letterkenny to Furtwangen im Schwarzwald | 831.83 mi (1,338.71 km) |
| Letterkenny to Fussen | 941.64 mi (1,515.43 km) |
