| National City to Hillcrest Heights (Maryland) | 2,271.83 mi (3,656.16 km) |
| National City to Hilliard (Ohio) | 1,943.27 mi (3,127.39 km) |
| National City to Hillsboro (Oregon) | 941.52 mi (1,515.23 km) |
| National City to Hillsborough (California) | 449.98 mi (724.17 km) |
| National City to Hillsborough (New Jersey) | 2,392.31 mi (3,850.05 km) |
| National City to Hilo (Hawaii) | 2,504.03 mi (4,029.85 km) |
| National City to Hilton Head Island (South Carolina) | 2,109.56 mi (3,395.01 km) |
| National City to Hinesville (Georgia) | 2,064.71 mi (3,322.84 km) |
| National City to Hinsdale (Illinois) | 1,714.04 mi (2,758.48 km) |
| National City to Hobart (Indiana) | 1,743.23 mi (2,805.45 km) |
| National City to Hobbs (New Mexico) | 809.87 mi (1,303.35 km) |
| National City to Hobe Sound (Florida) | 2,236.27 mi (3,598.93 km) |
| National City to Hoboken (New Jersey) | 2,424.83 mi (3,902.39 km) |
| National City to Hockessin (Delaware) | 2,338.74 mi (3,763.84 km) |
| National City to Hoffman Estates (Illinois) | 1,706.94 mi (2,747.06 km) |
