| Duluth to Forli | 4,640.87 mi (7,468.76 km) |
| Duluth to Forlimpopoli | 4,646.24 mi (7,477.40 km) |
| Duluth to Formello | 4,757.26 mi (7,656.08 km) |
| Duluth to Formia | 4,841.55 mi (7,791.72 km) |
| Duluth to Formigine | 4,583.14 mi (7,375.86 km) |
| Duluth to Fossano | 4,469.68 mi (7,193.25 km) |
| Duluth to Fossombrone | 4,693.89 mi (7,554.09 km) |
| Duluth to Francavilla al Mare | 4,809.53 mi (7,740.20 km) |
| Duluth to Francavilla Fontana | 5,020.89 mi (8,080.34 km) |
| Duluth to Francofonte | 5,089.70 mi (8,191.07 km) |
| Duluth to Frascati | 4,780.57 mi (7,693.59 km) |
| Duluth to Frattamaggiore | 4,882.28 mi (7,857.27 km) |
| Duluth to Frattaminore | 4,880.85 mi (7,854.97 km) |
| Duluth to Frosinone | 4,813.82 mi (7,747.10 km) |
| Duluth to Fucecchio | 4,619.79 mi (7,434.84 km) |
