| Merthyr Tudful to Greenford | 130.72 mi (210.38 km) |
| Merthyr Tudful to Greenock | 296.11 mi (476.54 km) |
| Merthyr Tudful to Greetland | 148.37 mi (238.78 km) |
| Merthyr Tudful to Grimsby | 187.04 mi (301.02 km) |
| Merthyr Tudful to Guildford | 125.75 mi (202.37 km) |
| Merthyr Tudful to Guisborough | 215.55 mi (346.89 km) |
| Merthyr Tudful to Guiseley | 163.01 mi (262.34 km) |
| Merthyr Tudful to Hackney | 144.36 mi (232.32 km) |
| Merthyr Tudful to Haddington | 292.10 mi (470.09 km) |
| Merthyr Tudful to Hadleigh | 171.43 mi (275.89 km) |
| Merthyr Tudful to Hailsham | 168.34 mi (270.92 km) |
| Merthyr Tudful to Halesowen | 74.57 mi (120.01 km) |
| Merthyr Tudful to Halewood | 113.98 mi (183.43 km) |
| Merthyr Tudful to Halifax | 150.89 mi (242.84 km) |
| Merthyr Tudful to Halstead | 172.10 mi (276.98 km) |
