| Oristano to Hilliard (Ohio) | 4,612.00 mi (7,422.30 km) |
| Oristano to Hillsboro (Oregon) | 5,815.92 mi (9,359.81 km) |
| Oristano to Hillsborough (California) | 6,248.15 mi (10,055.42 km) |
| Oristano to Hillsborough (New Jersey) | 4,212.42 mi (6,779.23 km) |
| Oristano to Hilo (Hawaii) | 8,186.90 mi (13,175.55 km) |
| Oristano to Hilton Head Island (South Carolina) | 4,806.17 mi (7,734.78 km) |
| Oristano to Hinesville (Georgia) | 4,862.04 mi (7,824.70 km) |
| Oristano to Hinsdale (Illinois) | 4,749.13 mi (7,642.98 km) |
| Oristano to Hobart (Indiana) | 4,732.83 mi (7,616.75 km) |
| Oristano to Hobbs (New Mexico) | 5,791.22 mi (9,320.06 km) |
| Oristano to Hobe Sound (Florida) | 4,982.84 mi (8,019.11 km) |
| Oristano to Hoboken (New Jersey) | 4,175.81 mi (6,720.32 km) |
| Oristano to Hockessin (Delaware) | 4,284.41 mi (6,895.10 km) |
| Oristano to Hoffman Estates (Illinois) | 4,747.88 mi (7,640.98 km) |
| Oristano to Holbrook (New York) | 4,130.23 mi (6,646.96 km) |
