| Defiance to Fortuna Foothills (Arizona) | 1,750.95 mi (2,817.88 km) |
| Defiance to Foster City (California) | 2,023.11 mi (3,255.89 km) |
| Defiance to Fostoria (Ohio) | 50.26 mi (80.89 km) |
| Defiance to Fountain (Colorado) | 1,087.82 mi (1,750.68 km) |
| Defiance to Fountain Hills (Arizona) | 1,584.52 mi (2,550.03 km) |
| Defiance to Fountain Inn (South Carolina) | 469.79 mi (756.05 km) |
| Defiance to Fountain Valley (California) | 1,900.80 mi (3,059.05 km) |
| Defiance to Fountainebleau (Florida) | 1,095.94 mi (1,763.75 km) |
| Defiance to Four Corners (Oregon) | 1,945.17 mi (3,130.45 km) |
| Defiance to Four Corners (Texas) | 1,021.50 mi (1,643.94 km) |
| Defiance to Four Square Mile (Colorado) | 1,081.63 mi (1,740.72 km) |
| Defiance to Fox Crossing (Wisconsin) | 291.13 mi (468.53 km) |
| Defiance to Fox Lake (Illinois) | 211.77 mi (340.81 km) |
| Defiance to Framingham (Massachusetts) | 669.10 mi (1,076.82 km) |
| Defiance to Franconia (Virginia) | 418.81 mi (674.01 km) |
