| Delaware to Fortuna Foothills (Arizona) | 1,807.56 mi (2,908.99 km) |
| Delaware to Foster City (California) | 2,098.06 mi (3,376.50 km) |
| Delaware to Fostoria (Ohio) | 62.99 mi (101.37 km) |
| Delaware to Fountain (Colorado) | 1,154.66 mi (1,858.24 km) |
| Delaware to Fountain Hills (Arizona) | 1,640.63 mi (2,640.34 km) |
| Delaware to Fountain Inn (South Carolina) | 388.92 mi (625.91 km) |
| Delaware to Fountain Valley (California) | 1,963.97 mi (3,160.71 km) |
| Delaware to Fountainebleau (Florida) | 1,014.96 mi (1,633.43 km) |
| Delaware to Four Corners (Oregon) | 2,033.27 mi (3,272.24 km) |
| Delaware to Four Corners (Texas) | 1,020.43 mi (1,642.22 km) |
| Delaware to Four Square Mile (Colorado) | 1,152.70 mi (1,855.10 km) |
| Delaware to Fox Crossing (Wisconsin) | 387.58 mi (623.75 km) |
| Delaware to Fox Lake (Illinois) | 303.38 mi (488.24 km) |
| Delaware to Framingham (Massachusetts) | 619.51 mi (997.01 km) |
| Delaware to Franconia (Virginia) | 332.14 mi (534.52 km) |
