| Duffel to Exeter (California) | 5,501.45 mi (8,853.73 km) |
| Duffel to Fair Lawn (New Jersey) | 3,654.07 mi (5,880.65 km) |
| Duffel to Fair Oaks (California) | 5,423.60 mi (8,728.44 km) |
| Duffel to Fair Oaks (Virginia) | 3,877.58 mi (6,240.35 km) |
| Duffel to Fairbanks (Alaska) | 4,289.30 mi (6,902.96 km) |
| Duffel to Fairborn (Ohio) | 4,097.06 mi (6,593.58 km) |
| Duffel to Fairburn (Georgia) | 4,422.51 mi (7,117.34 km) |
| Duffel to Fairfax (Virginia) | 3,875.76 mi (6,237.43 km) |
| Duffel to Fairfax Station (Virginia) | 3,879.91 mi (6,244.12 km) |
| Duffel to Fairfield (California) | 5,468.71 mi (8,801.04 km) |
| Duffel to Fairfield (Ohio) | 4,139.98 mi (6,662.65 km) |
| Duffel to Fairhope (Alabama) | 4,706.91 mi (7,575.04 km) |
| Duffel to Fairland (Maryland) | 3,851.40 mi (6,198.22 km) |
| Duffel to Fairmont (Minnesota) | 4,298.42 mi (6,917.64 km) |
| Duffel to Fairmont (West Virginia) | 3,960.92 mi (6,374.49 km) |
