| Maryland Heights to Hamtramck (Michigan) | 464.70 mi (747.86 km) |
| Maryland Heights to Hanahan (South Carolina) | 709.28 mi (1,141.47 km) |
| Maryland Heights to Hanford (California) | 1,600.74 mi (2,576.14 km) |
| Maryland Heights to Hannibal (Missouri) | 84.31 mi (135.68 km) |
| Maryland Heights to Hanover (Pennsylvania) | 724.94 mi (1,166.68 km) |
| Maryland Heights to Hanover Park (Illinois) | 256.65 mi (413.03 km) |
| Maryland Heights to Happy Valley (Oregon) | 1,694.55 mi (2,727.12 km) |
| Maryland Heights to Harker Heights (Texas) | 666.84 mi (1,073.17 km) |
| Maryland Heights to Harlingen (Texas) | 961.70 mi (1,547.71 km) |
| Maryland Heights to Harper Woods (Michigan) | 471.79 mi (759.28 km) |
| Maryland Heights to Harrisburg (North Carolina) | 590.58 mi (950.45 km) |
| Maryland Heights to Harrisburg (Pennsylvania) | 731.79 mi (1,177.70 km) |
| Maryland Heights to Harrison (Arkansas) | 224.20 mi (360.81 km) |
| Maryland Heights to Harrison (New Jersey) | 877.16 mi (1,411.66 km) |
| Maryland Heights to Harrison (New York) | 901.21 mi (1,450.35 km) |
