| Merthyr Tudful to Exeter (California) | 5,226.87 mi (8,411.84 km) |
| Merthyr Tudful to Fair Lawn (New Jersey) | 3,318.25 mi (5,340.21 km) |
| Merthyr Tudful to Fair Oaks (California) | 5,159.23 mi (8,302.97 km) |
| Merthyr Tudful to Fair Oaks (Virginia) | 3,541.77 mi (5,699.93 km) |
| Merthyr Tudful to Fairbanks (Alaska) | 4,159.46 mi (6,694.01 km) |
| Merthyr Tudful to Fairborn (Ohio) | 3,768.57 mi (6,064.93 km) |
| Merthyr Tudful to Fairburn (Georgia) | 4,086.84 mi (6,577.14 km) |
| Merthyr Tudful to Fairfax (Virginia) | 3,539.90 mi (5,696.91 km) |
| Merthyr Tudful to Fairfax Station (Virginia) | 3,544.01 mi (5,703.53 km) |
| Merthyr Tudful to Fairfield (California) | 5,205.53 mi (8,377.50 km) |
| Merthyr Tudful to Fairfield (Ohio) | 3,811.34 mi (6,133.76 km) |
| Merthyr Tudful to Fairhope (Alabama) | 4,371.12 mi (7,034.64 km) |
| Merthyr Tudful to Fairland (Maryland) | 3,515.52 mi (5,657.69 km) |
| Merthyr Tudful to Fairmont (Minnesota) | 3,990.78 mi (6,422.54 km) |
| Merthyr Tudful to Fairmont (West Virginia) | 3,628.19 mi (5,839.01 km) |
