| Idanha-a-Nova to Fortuna Foothills (Arizona) | 5,599.32 mi (9,011.24 km) |
| Idanha-a-Nova to Foster City (California) | 5,686.97 mi (9,152.30 km) |
| Idanha-a-Nova to Fostoria (Ohio) | 3,864.07 mi (6,218.62 km) |
| Idanha-a-Nova to Fountain (Colorado) | 4,914.36 mi (7,908.89 km) |
| Idanha-a-Nova to Fountain Hills (Arizona) | 5,440.83 mi (8,756.17 km) |
| Idanha-a-Nova to Fountain Inn (South Carolina) | 4,012.47 mi (6,457.45 km) |
| Idanha-a-Nova to Fountain Valley (California) | 5,700.63 mi (9,174.29 km) |
| Idanha-a-Nova to Fountainebleau (Florida) | 4,238.08 mi (6,820.53 km) |
| Idanha-a-Nova to Four Corners (Oregon) | 5,351.05 mi (8,611.68 km) |
| Idanha-a-Nova to Four Corners (Texas) | 4,862.13 mi (7,824.84 km) |
| Idanha-a-Nova to Four Square Mile (Colorado) | 4,882.49 mi (7,857.61 km) |
| Idanha-a-Nova to Fox Crossing (Wisconsin) | 4,001.36 mi (6,439.57 km) |
| Idanha-a-Nova to Fox Lake (Illinois) | 4,044.62 mi (6,509.19 km) |
| Idanha-a-Nova to Framingham (Massachusetts) | 3,264.89 mi (5,254.33 km) |
| Idanha-a-Nova to Franconia (Virginia) | 3,635.89 mi (5,851.41 km) |
