| Duncan to Fisciano | 5,705.23 mi (9,181.68 km) |
| Duncan to Fiuggi | 5,596.39 mi (9,006.52 km) |
| Duncan to Fiume Veneto | 5,399.76 mi (8,690.08 km) |
| Duncan to Fiumefreddo di Sicilia | 5,853.96 mi (9,421.03 km) |
| Duncan to Fiumicino | 5,558.26 mi (8,945.15 km) |
| Duncan to Flero | 5,320.36 mi (8,562.29 km) |
| Duncan to Florence | 5,433.96 mi (8,745.11 km) |
| Duncan to Floridia | 5,884.02 mi (9,469.41 km) |
| Duncan to Foggia | 5,703.82 mi (9,179.41 km) |
| Duncan to Foiano della Chiana | 5,478.29 mi (8,816.45 km) |
| Duncan to Folignano | 5,568.73 mi (8,962.01 km) |
| Duncan to Foligno | 5,526.13 mi (8,893.44 km) |
| Duncan to Follonica | 5,450.06 mi (8,771.03 km) |
| Duncan to Fondi | 5,624.00 mi (9,050.95 km) |
| Duncan to Fontanafredda | 5,392.03 mi (8,677.64 km) |
