| Gretna to Horwich | 4,486.56 mi (7,220.42 km) |
| Gretna to Houghton le Spring | 4,502.47 mi (7,246.02 km) |
| Gretna to Houghton Regis | 4,602.96 mi (7,407.75 km) |
| Gretna to Hounslow | 4,619.02 mi (7,433.59 km) |
| Gretna to Hove | 4,641.85 mi (7,470.33 km) |
| Gretna to Hoyland Nether | 4,531.55 mi (7,292.83 km) |
| Gretna to Hucclecote | 4,537.25 mi (7,302.00 km) |
| Gretna to Huddersfield | 4,515.21 mi (7,266.53 km) |
| Gretna to Huntingdon | 4,607.25 mi (7,414.65 km) |
| Gretna to Huntington | 4,536.50 mi (7,300.79 km) |
| Gretna to Huyton | 4,478.41 mi (7,207.30 km) |
| Gretna to Hwlffordd | 4,424.40 mi (7,120.38 km) |
| Gretna to Hyde | 4,507.49 mi (7,254.10 km) |
| Gretna to Hythe | 4,590.76 mi (7,388.12 km) |
| Gretna to Hythe | 4,687.63 mi (7,544.01 km) |
