| Llantrisant to Felida (Washington) | 4,812.11 mi (7,744.35 km) |
| Llantrisant to Fenton (Michigan) | 3,628.11 mi (5,838.87 km) |
| Llantrisant to Fergus Falls (Minnesota) | 3,933.12 mi (6,329.75 km) |
| Llantrisant to Ferguson (Missouri) | 4,071.19 mi (6,551.94 km) |
| Llantrisant to Fernandina Beach (Florida) | 4,100.54 mi (6,599.18 km) |
| Llantrisant to Ferndale (Maryland) | 3,501.69 mi (5,635.42 km) |
| Llantrisant to Ferndale (Michigan) | 3,620.13 mi (5,826.03 km) |
| Llantrisant to Ferndale (Washington) | 4,632.73 mi (7,455.65 km) |
| Llantrisant to Fernley (Nevada) | 5,053.82 mi (8,133.34 km) |
| Llantrisant to Ferry Pass (Florida) | 4,346.61 mi (6,995.19 km) |
| Llantrisant to Festus (Missouri) | 4,100.93 mi (6,599.81 km) |
| Llantrisant to Fife (Washington) | 4,716.83 mi (7,591.01 km) |
| Llantrisant to Fillmore (California) | 5,335.74 mi (8,587.04 km) |
| Llantrisant to Findlay (Ohio) | 3,702.76 mi (5,959.02 km) |
| Llantrisant to Finneytown (Ohio) | 3,820.72 mi (6,148.85 km) |
