| Duffel to Felida (Washington) | 5,045.97 mi (8,120.70 km) |
| Duffel to Fenton (Michigan) | 3,946.11 mi (6,350.65 km) |
| Duffel to Fergus Falls (Minnesota) | 4,224.08 mi (6,797.99 km) |
| Duffel to Ferguson (Missouri) | 4,388.17 mi (7,062.08 km) |
| Duffel to Fernandina Beach (Florida) | 4,437.64 mi (7,141.69 km) |
| Duffel to Ferndale (Maryland) | 3,833.66 mi (6,169.68 km) |
| Duffel to Ferndale (Michigan) | 3,939.55 mi (6,340.10 km) |
| Duffel to Ferndale (Washington) | 4,858.70 mi (7,819.32 km) |
| Duffel to Fernley (Nevada) | 5,311.77 mi (8,548.47 km) |
| Duffel to Ferry Pass (Florida) | 4,679.06 mi (7,530.23 km) |
| Duffel to Festus (Missouri) | 4,418.71 mi (7,111.23 km) |
| Duffel to Fife (Washington) | 4,947.73 mi (7,962.61 km) |
| Duffel to Fillmore (California) | 5,605.59 mi (9,021.32 km) |
| Duffel to Findlay (Ohio) | 4,024.26 mi (6,476.42 km) |
| Duffel to Finneytown (Ohio) | 4,144.38 mi (6,669.73 km) |
