| Llantwit Major to Firestone (Colorado) | 4,549.53 mi (7,321.77 km) |
| Llantwit Major to Fish Hawk (Florida) | 4,268.76 mi (6,869.90 km) |
| Llantwit Major to Fishers (Indiana) | 3,844.07 mi (6,186.43 km) |
| Llantwit Major to Fitchburg (Massachusetts) | 3,157.38 mi (5,081.31 km) |
| Llantwit Major to Fitchburg (Wisconsin) | 3,840.83 mi (6,181.21 km) |
| Llantwit Major to Five Corners (Washington) | 4,814.06 mi (7,747.48 km) |
| Llantwit Major to Five Forks (South Carolina) | 3,931.68 mi (6,327.43 km) |
| Llantwit Major to Flagstaff (Arizona) | 5,046.89 mi (8,122.18 km) |
| Llantwit Major to Flat Rock (Michigan) | 3,641.27 mi (5,860.05 km) |
| Llantwit Major to Fleming Island (Florida) | 4,136.55 mi (6,657.13 km) |
| Llantwit Major to Flint (Michigan) | 3,617.39 mi (5,821.63 km) |
| Llantwit Major to Floral Park (New York) | 3,312.74 mi (5,331.34 km) |
| Llantwit Major to Florence (Alabama) | 4,153.68 mi (6,684.70 km) |
| Llantwit Major to Florence (Arizona) | 5,155.53 mi (8,297.03 km) |
| Llantwit Major to Florence (Kentucky) | 3,835.81 mi (6,173.14 km) |
