| Romeoville to Hamtramck (Michigan) | 264.20 mi (425.19 km) |
| Romeoville to Hanahan (South Carolina) | 747.30 mi (1,202.66 km) |
| Romeoville to Hanford (California) | 1,723.85 mi (2,774.26 km) |
| Romeoville to Hannibal (Missouri) | 217.77 mi (350.47 km) |
| Romeoville to Hanover (Pennsylvania) | 595.06 mi (957.66 km) |
| Romeoville to Hanover Park (Illinois) | 24.29 mi (39.10 km) |
| Romeoville to Happy Valley (Oregon) | 1,729.94 mi (2,784.07 km) |
| Romeoville to Harker Heights (Texas) | 902.03 mi (1,451.68 km) |
| Romeoville to Harlingen (Texas) | 1,198.51 mi (1,928.81 km) |
| Romeoville to Harper Woods (Michigan) | 271.08 mi (436.27 km) |
| Romeoville to Harrisburg (North Carolina) | 593.75 mi (955.54 km) |
| Romeoville to Harrisburg (Pennsylvania) | 592.26 mi (953.15 km) |
| Romeoville to Harrison (Arkansas) | 459.57 mi (739.60 km) |
| Romeoville to Harrison (New Jersey) | 726.97 mi (1,169.95 km) |
| Romeoville to Harrison (New York) | 746.45 mi (1,201.29 km) |
