| Duncan to Forli | 5,445.74 mi (8,764.08 km) |
| Duncan to Forlimpopoli | 5,451.12 mi (8,772.73 km) |
| Duncan to Formello | 5,551.39 mi (8,934.10 km) |
| Duncan to Formia | 5,635.68 mi (9,069.75 km) |
| Duncan to Formigine | 5,386.30 mi (8,668.42 km) |
| Duncan to Fossano | 5,261.53 mi (8,467.62 km) |
| Duncan to Fossombrone | 5,498.49 mi (8,848.97 km) |
| Duncan to Francavilla al Mare | 5,612.47 mi (9,032.40 km) |
| Duncan to Francavilla Fontana | 5,826.18 mi (9,376.34 km) |
| Duncan to Francofonte | 5,866.11 mi (9,440.60 km) |
| Duncan to Frascati | 5,574.25 mi (8,970.89 km) |
| Duncan to Frattamaggiore | 5,677.12 mi (9,136.44 km) |
| Duncan to Frattaminore | 5,675.72 mi (9,134.18 km) |
| Duncan to Frosinone | 5,608.98 mi (9,026.78 km) |
| Duncan to Fucecchio | 5,417.53 mi (8,718.67 km) |
