| Opfikon to Frederick (Maryland) | 4,125.33 mi (6,639.08 km) |
| Opfikon to Fredericksburg (Texas) | 5,437.09 mi (8,750.15 km) |
| Opfikon to Fredericksburg (Virginia) | 4,177.58 mi (6,723.17 km) |
| Opfikon to Frederickson (Washington) | 5,268.16 mi (8,478.29 km) |
| Opfikon to Freeport (Illinois) | 4,484.24 mi (7,216.69 km) |
| Opfikon to Freeport (New York) | 3,913.57 mi (6,298.29 km) |
| Opfikon to Freeport (Texas) | 5,364.74 mi (8,633.71 km) |
| Opfikon to Fremont (California) | 5,822.48 mi (9,370.38 km) |
| Opfikon to Fremont (Nebraska) | 4,778.66 mi (7,690.50 km) |
| Opfikon to Fremont (Ohio) | 4,273.78 mi (6,877.98 km) |
| Opfikon to French Valley (California) | 5,905.36 mi (9,503.75 km) |
| Opfikon to Fresno (California) | 5,802.87 mi (9,338.82 km) |
| Opfikon to Fresno (Texas) | 5,338.98 mi (8,592.26 km) |
| Opfikon to Fridley (Minnesota) | 4,486.53 mi (7,220.37 km) |
| Opfikon to Friendly (Maryland) | 4,135.58 mi (6,655.58 km) |
