| Isabela to Fortuna (California) | 3,683.77 mi (5,928.45 km) |
| Isabela to Fortuna Foothills (Arizona) | 3,082.36 mi (4,960.58 km) |
| Isabela to Foster City (California) | 3,560.97 mi (5,730.83 km) |
| Isabela to Fostoria (Ohio) | 1,841.12 mi (2,963.00 km) |
| Isabela to Fountain (Colorado) | 2,649.16 mi (4,263.41 km) |
| Isabela to Fountain Hills (Arizona) | 2,938.98 mi (4,729.84 km) |
| Isabela to Fountain Inn (South Carolina) | 1,456.31 mi (2,343.70 km) |
| Isabela to Fountain Valley (California) | 3,294.20 mi (5,301.51 km) |
| Isabela to Fountainebleau (Florida) | 988.83 mi (1,591.36 km) |
| Isabela to Four Corners (Oregon) | 3,670.96 mi (5,907.83 km) |
| Isabela to Four Corners (Texas) | 1,957.22 mi (3,149.84 km) |
| Isabela to Four Square Mile (Colorado) | 2,684.41 mi (4,320.15 km) |
| Isabela to Fox Crossing (Wisconsin) | 2,167.58 mi (3,488.38 km) |
| Isabela to Fox Lake (Illinois) | 2,066.11 mi (3,325.08 km) |
| Isabela to Framingham (Massachusetts) | 1,665.36 mi (2,680.13 km) |
