| Rhondda to Friendswood (Texas) | 4,720.83 mi (7,597.44 km) |
| Rhondda to Frisco (Texas) | 4,598.60 mi (7,400.74 km) |
| Rhondda to Front Royal (Virginia) | 3,573.82 mi (5,751.51 km) |
| Rhondda to Fruit Cove (Florida) | 4,132.14 mi (6,650.03 km) |
| Rhondda to Fruita (Colorado) | 4,727.42 mi (7,608.04 km) |
| Rhondda to Fruitville (Florida) | 4,304.91 mi (6,928.08 km) |
| Rhondda to Fuller Heights (Florida) | 4,255.82 mi (6,849.08 km) |
| Rhondda to Fullerton (California) | 5,327.43 mi (8,573.67 km) |
| Rhondda to Fullerton (Pennsylvania) | 3,388.27 mi (5,452.89 km) |
| Rhondda to Fulshear (Texas) | 4,738.81 mi (7,626.37 km) |
| Rhondda to Fulton (Missouri) | 4,126.67 mi (6,641.23 km) |
| Rhondda to Fulton (New York) | 3,312.64 mi (5,331.18 km) |
| Rhondda to Fuquay-Varina (North Carolina) | 3,750.19 mi (6,035.35 km) |
| Rhondda to Gadsden (Alabama) | 4,123.90 mi (6,636.77 km) |
| Rhondda to Gaffney (South Carolina) | 3,893.82 mi (6,266.50 km) |
