| Merthyr Tudful to North Augusta (South Carolina) | 3,979.50 mi (6,404.38 km) |
| Merthyr Tudful to North Aurora (Illinois) | 3,846.25 mi (6,189.94 km) |
| Merthyr Tudful to North Babylon (New York) | 3,294.38 mi (5,301.79 km) |
| Merthyr Tudful to North Bay Shore (New York) | 3,290.55 mi (5,295.63 km) |
| Merthyr Tudful to North Bellmore (New York) | 3,304.95 mi (5,318.80 km) |
| Merthyr Tudful to North Bellport (New York) | 3,276.40 mi (5,272.85 km) |
| Merthyr Tudful to North Bend (Oregon) | 4,975.30 mi (8,006.97 km) |
| Merthyr Tudful to North Bethesda (Maryland) | 3,524.18 mi (5,671.62 km) |
| Merthyr Tudful to North Branch (Minnesota) | 3,849.25 mi (6,194.76 km) |
| Merthyr Tudful to North Canton (Ohio) | 3,615.95 mi (5,819.31 km) |
| Merthyr Tudful to North Charleston (South Carolina) | 3,930.75 mi (6,325.93 km) |
| Merthyr Tudful to North Chicago (Illinois) | 3,804.46 mi (6,122.68 km) |
| Merthyr Tudful to North Decatur (Georgia) | 4,061.95 mi (6,537.08 km) |
| Merthyr Tudful to North Druid Hills (Georgia) | 4,062.92 mi (6,538.63 km) |
| Merthyr Tudful to North Fair Oaks (California) | 5,255.53 mi (8,457.96 km) |
