| Fort Collins to Forli | 5,399.71 mi (8,690.00 km) |
| Fort Collins to Forlimpopoli | 5,405.06 mi (8,698.61 km) |
| Fort Collins to Formello | 5,519.66 mi (8,883.04 km) |
| Fort Collins to Formia | 5,603.73 mi (9,018.33 km) |
| Fort Collins to Formigine | 5,342.82 mi (8,598.44 km) |
| Fort Collins to Fossano | 5,233.55 mi (8,422.59 km) |
| Fort Collins to Fossombrone | 5,452.68 mi (8,775.25 km) |
| Fort Collins to Francavilla al Mare | 5,568.63 mi (8,961.84 km) |
| Fort Collins to Francavilla Fontana | 5,778.40 mi (9,299.44 km) |
| Fort Collins to Francofonte | 5,856.41 mi (9,424.98 km) |
| Fort Collins to Frascati | 5,543.06 mi (8,920.69 km) |
| Fort Collins to Frattamaggiore | 5,644.11 mi (9,083.32 km) |
| Fort Collins to Frattaminore | 5,642.67 mi (9,081.01 km) |
| Fort Collins to Frosinone | 5,575.73 mi (8,973.26 km) |
| Fort Collins to Fucecchio | 5,381.34 mi (8,660.43 km) |
