| Cahokia to Hilliard (Ohio) | 388.80 mi (625.71 km) |
| Cahokia to Hillsboro (Oregon) | 1,734.73 mi (2,791.78 km) |
| Cahokia to Hillsborough (California) | 1,743.00 mi (2,805.09 km) |
| Cahokia to Hillsborough (New Jersey) | 837.05 mi (1,347.11 km) |
| Cahokia to Hilo (Hawaii) | 4,043.18 mi (6,506.86 km) |
| Cahokia to Hilton Head Island (South Carolina) | 689.40 mi (1,109.49 km) |
| Cahokia to Hinesville (Georgia) | 670.80 mi (1,079.54 km) |
| Cahokia to Hinsdale (Illinois) | 253.18 mi (407.45 km) |
| Cahokia to Hobart (Indiana) | 255.22 mi (410.73 km) |
| Cahokia to Hobbs (New Mexico) | 831.80 mi (1,338.65 km) |
| Cahokia to Hobe Sound (Florida) | 983.51 mi (1,582.81 km) |
| Cahokia to Hoboken (New Jersey) | 870.97 mi (1,401.68 km) |
| Cahokia to Hockessin (Delaware) | 780.23 mi (1,255.66 km) |
| Cahokia to Hoffman Estates (Illinois) | 264.39 mi (425.49 km) |
| Cahokia to Holbrook (New York) | 921.21 mi (1,482.55 km) |
