| Castlebar to Foix | 901.56 mi (1,450.92 km) |
| Castlebar to Fondettes | 621.13 mi (999.61 km) |
| Castlebar to Fonsorbes | 857.94 mi (1,380.72 km) |
| Castlebar to Fontaine | 896.82 mi (1,443.29 km) |
| Castlebar to Fontaine-les-Dijon | 770.39 mi (1,239.82 km) |
| Castlebar to Fontainebleau | 640.97 mi (1,031.54 km) |
| Castlebar to Fontenay-aux-Roses | 609.63 mi (981.10 km) |
| Castlebar to Fontenay-le-Comte | 633.31 mi (1,019.21 km) |
| Castlebar to Fontenay-le-Fleury | 600.14 mi (965.83 km) |
| Castlebar to Fontenay-sous-Bois | 613.56 mi (987.43 km) |
| Castlebar to Forbach | 765.20 mi (1,231.46 km) |
| Castlebar to Fos-sur-Mer | 965.72 mi (1,554.17 km) |
| Castlebar to Fosses | 604.10 mi (972.21 km) |
| Castlebar to Fouesnant | 472.05 mi (759.70 km) |
| Castlebar to Fougeres | 517.37 mi (832.63 km) |
