| Duffel to Firestone (Colorado) | 4,836.91 mi (7,784.25 km) |
| Duffel to Fish Hawk (Florida) | 4,609.94 mi (7,418.98 km) |
| Duffel to Fishers (Indiana) | 4,164.94 mi (6,702.83 km) |
| Duffel to Fitchburg (Massachusetts) | 3,490.00 mi (5,616.61 km) |
| Duffel to Fitchburg (Wisconsin) | 4,149.99 mi (6,678.76 km) |
| Duffel to Five Corners (Washington) | 5,044.02 mi (8,117.57 km) |
| Duffel to Five Forks (South Carolina) | 4,265.62 mi (6,864.85 km) |
| Duffel to Flagstaff (Arizona) | 5,330.60 mi (8,578.77 km) |
| Duffel to Flat Rock (Michigan) | 3,961.46 mi (6,375.35 km) |
| Duffel to Fleming Island (Florida) | 4,476.22 mi (7,203.78 km) |
| Duffel to Flint (Michigan) | 3,934.99 mi (6,332.75 km) |
| Duffel to Floral Park (New York) | 3,646.69 mi (5,868.77 km) |
| Duffel to Florence (Alabama) | 4,481.25 mi (7,211.87 km) |
| Duffel to Florence (Arizona) | 5,444.15 mi (8,761.52 km) |
| Duffel to Florence (Kentucky) | 4,160.30 mi (6,695.35 km) |
