| Isabela to Frederick (Colorado) | 2,699.57 mi (4,344.53 km) |
| Isabela to Frederick (Maryland) | 1,574.19 mi (2,533.42 km) |
| Isabela to Fredericksburg (Texas) | 2,153.62 mi (3,465.92 km) |
| Isabela to Fredericksburg (Virginia) | 1,506.08 mi (2,423.80 km) |
| Isabela to Frederickson (Washington) | 3,672.93 mi (5,911.01 km) |
| Isabela to Freeport (Illinois) | 2,111.47 mi (3,398.08 km) |
| Isabela to Freeport (New York) | 1,579.35 mi (2,541.71 km) |
| Isabela to Freeport (Texas) | 1,925.92 mi (3,099.47 km) |
| Isabela to Fremont (California) | 3,545.42 mi (5,705.81 km) |
| Isabela to Fremont (Nebraska) | 2,349.75 mi (3,781.56 km) |
| Isabela to Fremont (Ohio) | 1,842.77 mi (2,965.66 km) |
| Isabela to French Valley (California) | 3,245.13 mi (5,222.53 km) |
| Isabela to Fresno (California) | 3,419.88 mi (5,503.77 km) |
| Isabela to Fresno (Texas) | 1,943.61 mi (3,127.94 km) |
| Isabela to Fridley (Minnesota) | 2,375.62 mi (3,823.19 km) |
