| Idrija to Fern Down | 800.38 mi (1,288.09 km) |
| Idrija to Ferryhill | 908.55 mi (1,462.17 km) |
| Idrija to Finchley | 751.77 mi (1,209.86 km) |
| Idrija to Fleet | 768.85 mi (1,237.35 km) |
| Idrija to Fleetwood | 930.44 mi (1,497.41 km) |
| Idrija to Flint | 913.30 mi (1,469.82 km) |
| Idrija to Flitwick | 775.91 mi (1,248.70 km) |
| Idrija to Flixton | 892.36 mi (1,436.12 km) |
| Idrija to Folkestone | 683.64 mi (1,100.21 km) |
| Idrija to Forfar | 1,031.03 mi (1,659.28 km) |
| Idrija to Formby | 920.49 mi (1,481.38 km) |
| Idrija to Forres | 1,094.20 mi (1,760.95 km) |
| Idrija to Fort William | 1,105.92 mi (1,779.81 km) |
| Idrija to Fraserburgh | 1,053.23 mi (1,695.01 km) |
| Idrija to Friern Barnet | 751.07 mi (1,208.72 km) |
