| Llantwit Major to Friendswood (Texas) | 4,723.62 mi (7,601.93 km) |
| Llantwit Major to Frisco (Texas) | 4,602.34 mi (7,406.74 km) |
| Llantwit Major to Front Royal (Virginia) | 3,575.72 mi (5,754.56 km) |
| Llantwit Major to Fruit Cove (Florida) | 4,132.62 mi (6,650.81 km) |
| Llantwit Major to Fruita (Colorado) | 4,734.04 mi (7,618.70 km) |
| Llantwit Major to Fruitville (Florida) | 4,304.98 mi (6,928.20 km) |
| Llantwit Major to Fuller Heights (Florida) | 4,255.93 mi (6,849.25 km) |
| Llantwit Major to Fullerton (California) | 5,334.67 mi (8,585.33 km) |
| Llantwit Major to Fullerton (Pennsylvania) | 3,390.16 mi (5,455.94 km) |
| Llantwit Major to Fulshear (Texas) | 4,741.75 mi (7,631.11 km) |
| Llantwit Major to Fulton (Missouri) | 4,130.72 mi (6,647.75 km) |
| Llantwit Major to Fulton (New York) | 3,315.40 mi (5,335.62 km) |
| Llantwit Major to Fuquay-Varina (North Carolina) | 3,751.38 mi (6,037.27 km) |
| Llantwit Major to Gadsden (Alabama) | 4,125.98 mi (6,640.12 km) |
| Llantwit Major to Gaffney (South Carolina) | 3,895.39 mi (6,269.02 km) |
