| Ada to Hilliard (Ohio) | 4,851.59 mi (7,807.88 km) |
| Ada to Hillsboro (Oregon) | 5,737.58 mi (9,233.75 km) |
| Ada to Hillsborough (California) | 6,224.03 mi (10,016.61 km) |
| Ada to Hillsborough (New Jersey) | 4,496.21 mi (7,235.96 km) |
| Ada to Hilo (Hawaii) | 7,902.06 mi (12,717.14 km) |
| Ada to Hilton Head Island (South Carolina) | 5,133.97 mi (8,262.33 km) |
| Ada to Hinesville (Georgia) | 5,187.62 mi (8,348.68 km) |
| Ada to Hinsdale (Illinois) | 4,942.58 mi (7,954.31 km) |
| Ada to Hobart (Indiana) | 4,933.06 mi (7,938.99 km) |
| Ada to Hobbs (New Mexico) | 5,958.27 mi (9,588.91 km) |
| Ada to Hobe Sound (Florida) | 5,358.36 mi (8,623.44 km) |
| Ada to Hoboken (New Jersey) | 4,460.53 mi (7,178.53 km) |
| Ada to Hockessin (Delaware) | 4,569.99 mi (7,354.69 km) |
| Ada to Hoffman Estates (Illinois) | 4,937.44 mi (7,946.05 km) |
| Ada to Holbrook (New York) | 4,419.65 mi (7,112.74 km) |
