| Robstown to Fortuna (California) | 1,741.98 mi (2,803.45 km) |
| Robstown to Fortuna Foothills (Arizona) | 1,052.33 mi (1,693.56 km) |
| Robstown to Foster City (California) | 1,575.09 mi (2,534.86 km) |
| Robstown to Fostoria (Ohio) | 1,226.35 mi (1,973.62 km) |
| Robstown to Fountain (Colorado) | 854.22 mi (1,374.74 km) |
| Robstown to Fountain Hills (Arizona) | 926.26 mi (1,490.67 km) |
| Robstown to Fountain Inn (South Carolina) | 1,029.10 mi (1,656.18 km) |
| Robstown to Fountain Valley (California) | 1,269.18 mi (2,042.55 km) |
| Robstown to Fountainebleau (Florida) | 1,076.68 mi (1,732.75 km) |
| Robstown to Four Corners (Oregon) | 1,825.76 mi (2,938.28 km) |
| Robstown to Four Corners (Texas) | 177.85 mi (286.22 km) |
| Robstown to Four Square Mile (Colorado) | 919.27 mi (1,479.42 km) |
| Robstown to Fox Crossing (Wisconsin) | 1,244.03 mi (2,002.07 km) |
| Robstown to Fox Lake (Illinois) | 1,142.40 mi (1,838.51 km) |
| Robstown to Framingham (Massachusetts) | 1,779.08 mi (2,863.15 km) |
