| Holyhead to Fortuna Foothills (Arizona) | 5,166.28 mi (8,314.32 km) |
| Holyhead to Foster City (California) | 5,139.93 mi (8,271.93 km) |
| Holyhead to Fostoria (Ohio) | 3,594.68 mi (5,785.08 km) |
| Holyhead to Fountain (Colorado) | 4,503.14 mi (7,247.10 km) |
| Holyhead to Fountain Hills (Arizona) | 5,022.76 mi (8,083.34 km) |
| Holyhead to Fountain Inn (South Carolina) | 3,854.69 mi (6,203.52 km) |
| Holyhead to Fountain Valley (California) | 5,225.09 mi (8,408.97 km) |
| Holyhead to Fountainebleau (Florida) | 4,229.96 mi (6,807.46 km) |
| Holyhead to Four Corners (Oregon) | 4,737.17 mi (7,623.74 km) |
| Holyhead to Four Corners (Texas) | 4,642.57 mi (7,471.49 km) |
| Holyhead to Four Square Mile (Colorado) | 4,458.16 mi (7,174.72 km) |
| Holyhead to Fox Crossing (Wisconsin) | 3,645.21 mi (5,866.39 km) |
| Holyhead to Fox Lake (Illinois) | 3,717.81 mi (5,983.24 km) |
| Holyhead to Framingham (Massachusetts) | 3,071.55 mi (4,943.18 km) |
| Holyhead to Franconia (Virginia) | 3,458.76 mi (5,566.33 km) |
