| Kardzhali to Frederick (Maryland) | 5,035.17 mi (8,103.32 km) |
| Kardzhali to Fredericksburg (Texas) | 6,329.98 mi (10,187.12 km) |
| Kardzhali to Fredericksburg (Virginia) | 5,089.03 mi (8,190.00 km) |
| Kardzhali to Frederickson (Washington) | 5,994.09 mi (9,646.56 km) |
| Kardzhali to Freeport (Illinois) | 5,366.41 mi (8,636.41 km) |
| Kardzhali to Freeport (New York) | 4,825.10 mi (7,765.24 km) |
| Kardzhali to Freeport (Texas) | 6,267.71 mi (10,086.91 km) |
| Kardzhali to Fremont (California) | 6,591.66 mi (10,608.25 km) |
| Kardzhali to Fremont (Nebraska) | 5,645.50 mi (9,085.56 km) |
| Kardzhali to Fremont (Ohio) | 5,171.88 mi (8,323.34 km) |
| Kardzhali to French Valley (California) | 6,717.80 mi (10,811.26 km) |
| Kardzhali to Fresno (California) | 6,588.07 mi (10,602.47 km) |
| Kardzhali to Fresno (Texas) | 6,240.67 mi (10,043.39 km) |
| Kardzhali to Fridley (Minnesota) | 5,349.00 mi (8,608.38 km) |
| Kardzhali to Friendly (Maryland) | 5,046.86 mi (8,122.14 km) |
