| Greenock to Hilliard (Ohio) | 3,574.91 mi (5,753.26 km) |
| Greenock to Hillsboro (Oregon) | 4,563.12 mi (7,343.64 km) |
| Greenock to Hillsborough (California) | 5,014.50 mi (8,070.05 km) |
| Greenock to Hillsborough (New Jersey) | 3,233.46 mi (5,203.75 km) |
| Greenock to Hilo (Hawaii) | 6,930.39 mi (11,153.38 km) |
| Greenock to Hilton Head Island (South Carolina) | 3,883.77 mi (6,250.32 km) |
| Greenock to Hinesville (Georgia) | 3,935.88 mi (6,334.19 km) |
| Greenock to Hinsdale (Illinois) | 3,661.24 mi (5,892.20 km) |
| Greenock to Hobart (Indiana) | 3,651.94 mi (5,877.22 km) |
| Greenock to Hobbs (New Mexico) | 4,678.76 mi (7,529.73 km) |
| Greenock to Hobe Sound (Florida) | 4,132.08 mi (6,649.94 km) |
| Greenock to Hoboken (New Jersey) | 3,198.42 mi (5,147.36 km) |
| Greenock to Hockessin (Delaware) | 3,307.27 mi (5,322.53 km) |
| Greenock to Hoffman Estates (Illinois) | 3,656.05 mi (5,883.85 km) |
| Greenock to Holbrook (New York) | 3,159.71 mi (5,085.06 km) |
