| Giffnock to Hilliard (Ohio) | 3,595.30 mi (5,786.08 km) |
| Giffnock to Hillsboro (Oregon) | 4,582.80 mi (7,375.31 km) |
| Giffnock to Hillsborough (California) | 5,034.68 mi (8,102.53 km) |
| Giffnock to Hillsborough (New Jersey) | 3,253.36 mi (5,235.78 km) |
| Giffnock to Hilo (Hawaii) | 6,947.80 mi (11,181.41 km) |
| Giffnock to Hilton Head Island (South Carolina) | 3,903.36 mi (6,281.85 km) |
| Giffnock to Hinesville (Georgia) | 3,955.51 mi (6,365.78 km) |
| Giffnock to Hinsdale (Illinois) | 3,681.91 mi (5,925.46 km) |
| Giffnock to Hobart (Indiana) | 3,672.57 mi (5,910.43 km) |
| Giffnock to Hobbs (New Mexico) | 4,699.54 mi (7,563.17 km) |
| Giffnock to Hobe Sound (Florida) | 4,151.08 mi (6,680.52 km) |
| Giffnock to Hoboken (New Jersey) | 3,218.30 mi (5,179.35 km) |
| Giffnock to Hockessin (Delaware) | 3,327.17 mi (5,354.56 km) |
| Giffnock to Hoffman Estates (Illinois) | 3,676.73 mi (5,917.13 km) |
| Giffnock to Holbrook (New York) | 3,179.52 mi (5,116.94 km) |
