| Cahokia to Harrison (Wisconsin) | 400.95 mi (645.27 km) |
| Cahokia to Harrisonburg (Virginia) | 611.01 mi (983.33 km) |
| Cahokia to Hartford (Connecticut) | 948.06 mi (1,525.76 km) |
| Cahokia to Hartford (Wisconsin) | 341.85 mi (550.15 km) |
| Cahokia to Hartselle (Alabama) | 337.05 mi (542.43 km) |
| Cahokia to Hartsville (Tennessee) | 266.76 mi (429.31 km) |
| Cahokia to Harvey (Illinois) | 249.05 mi (400.81 km) |
| Cahokia to Harvey (Louisiana) | 599.58 mi (964.94 km) |
| Cahokia to Hasbrouck Heights (New Jersey) | 869.27 mi (1,398.95 km) |
| Cahokia to Haslett (Michigan) | 418.62 mi (673.70 km) |
| Cahokia to Hastings (Minnesota) | 447.83 mi (720.71 km) |
| Cahokia to Hastings (Nebraska) | 459.00 mi (738.68 km) |
| Cahokia to Hattiesburg (Mississippi) | 503.82 mi (810.81 km) |
| Cahokia to Hauppauge (New York) | 914.00 mi (1,470.94 km) |
| Cahokia to Havelock (North Carolina) | 776.69 mi (1,249.96 km) |
