| Alton to Hilliard (Ohio) | 3,835.17 mi (6,172.11 km) |
| Alton to Hillsboro (Oregon) | 4,915.87 mi (7,911.33 km) |
| Alton to Hillsborough (California) | 5,357.48 mi (8,622.03 km) |
| Alton to Hillsborough (New Jersey) | 3,469.50 mi (5,583.62 km) |
| Alton to Hilo (Hawaii) | 7,296.41 mi (11,742.44 km) |
| Alton to Hilton Head Island (South Carolina) | 4,103.72 mi (6,604.30 km) |
| Alton to Hinesville (Georgia) | 4,157.54 mi (6,690.91 km) |
| Alton to Hinsdale (Illinois) | 3,941.46 mi (6,343.17 km) |
| Alton to Hobart (Indiana) | 3,929.40 mi (6,323.75 km) |
| Alton to Hobbs (New Mexico) | 4,971.92 mi (8,001.53 km) |
| Alton to Hobe Sound (Florida) | 4,328.64 mi (6,966.27 km) |
| Alton to Hoboken (New Jersey) | 3,433.60 mi (5,525.85 km) |
| Alton to Hockessin (Delaware) | 3,543.17 mi (5,702.18 km) |
| Alton to Hoffman Estates (Illinois) | 3,937.79 mi (6,337.26 km) |
| Alton to Holbrook (New York) | 3,391.99 mi (5,458.88 km) |
