| Castelo Branco to Fern Down | 806.24 mi (1,297.51 km) |
| Castelo Branco to Ferryhill | 1,063.91 mi (1,712.19 km) |
| Castelo Branco to Finchley | 886.18 mi (1,426.16 km) |
| Castelo Branco to Fleet | 854.33 mi (1,374.91 km) |
| Castelo Branco to Fleetwood | 996.86 mi (1,604.29 km) |
| Castelo Branco to Flint | 950.47 mi (1,529.64 km) |
| Castelo Branco to Flitwick | 905.83 mi (1,457.79 km) |
| Castelo Branco to Flixton | 971.82 mi (1,564.00 km) |
| Castelo Branco to Folkestone | 882.99 mi (1,421.04 km) |
| Castelo Branco to Forfar | 1,181.22 mi (1,900.99 km) |
| Castelo Branco to Formby | 971.96 mi (1,564.22 km) |
| Castelo Branco to Forres | 1,241.42 mi (1,997.87 km) |
| Castelo Branco to Fort William | 1,179.76 mi (1,898.64 km) |
| Castelo Branco to Fraserburgh | 1,259.23 mi (2,026.54 km) |
| Castelo Branco to Friern Barnet | 887.56 mi (1,428.39 km) |
