| Merthyr Tudful to Punta Gorda (Florida) | 4,309.81 mi (6,935.97 km) |
| Merthyr Tudful to Puyallup (Washington) | 4,707.39 mi (7,575.82 km) |
| Merthyr Tudful to Queen Creek (Arizona) | 5,142.63 mi (8,276.27 km) |
| Merthyr Tudful to Queens (New York) | 3,313.05 mi (5,331.84 km) |
| Merthyr Tudful to Quincy (Illinois) | 4,050.77 mi (6,519.08 km) |
| Merthyr Tudful to Quincy (Massachusetts) | 3,135.84 mi (5,046.65 km) |
| Merthyr Tudful to Raceland (Louisiana) | 4,523.79 mi (7,280.34 km) |
| Merthyr Tudful to Racine (Wisconsin) | 3,784.05 mi (6,089.83 km) |
| Merthyr Tudful to Radcliff (Kentucky) | 3,937.33 mi (6,336.52 km) |
| Merthyr Tudful to Radford (Virginia) | 3,752.18 mi (6,038.55 km) |
| Merthyr Tudful to Rahway (New Jersey) | 3,339.00 mi (5,373.60 km) |
| Merthyr Tudful to Raleigh (North Carolina) | 3,733.04 mi (6,007.75 km) |
| Merthyr Tudful to Ramona (California) | 5,335.13 mi (8,586.06 km) |
| Merthyr Tudful to Ramsey (Minnesota) | 3,878.56 mi (6,241.94 km) |
| Merthyr Tudful to Ramsey (New Jersey) | 3,314.12 mi (5,333.55 km) |
