| Klamath Falls to Friendly (Maryland) | 2,339.65 mi (3,765.30 km) |
| Klamath Falls to Friendswood (Texas) | 1,717.08 mi (2,763.37 km) |
| Klamath Falls to Frisco (Texas) | 1,493.92 mi (2,404.23 km) |
| Klamath Falls to Front Royal (Virginia) | 2,274.10 mi (3,659.82 km) |
| Klamath Falls to Fruit Cove (Florida) | 2,365.93 mi (3,807.60 km) |
| Klamath Falls to Fruita (Colorado) | 714.65 mi (1,150.12 km) |
| Klamath Falls to Fruitville (Florida) | 2,429.33 mi (3,909.62 km) |
| Klamath Falls to Fuller Heights (Florida) | 2,429.18 mi (3,909.39 km) |
| Klamath Falls to Fullerton (California) | 612.60 mi (985.88 km) |
| Klamath Falls to Fullerton (Pennsylvania) | 2,371.04 mi (3,815.81 km) |
| Klamath Falls to Fulshear (Texas) | 1,677.05 mi (2,698.95 km) |
| Klamath Falls to Fulton (Missouri) | 1,575.02 mi (2,534.75 km) |
| Klamath Falls to Fulton (New York) | 2,273.26 mi (3,658.46 km) |
| Klamath Falls to Fuquay-Varina (North Carolina) | 2,331.23 mi (3,751.76 km) |
| Klamath Falls to Gadsden (Alabama) | 2,008.65 mi (3,232.62 km) |
