| Romeoville to Hillcrest Heights (Maryland) | 617.74 mi (994.16 km) |
| Romeoville to Hilliard (Ohio) | 280.85 mi (451.99 km) |
| Romeoville to Hillsboro (Oregon) | 1,750.22 mi (2,816.71 km) |
| Romeoville to Hillsborough (California) | 1,833.30 mi (2,950.42 km) |
| Romeoville to Hillsborough (New Jersey) | 704.05 mi (1,133.06 km) |
| Romeoville to Hilo (Hawaii) | 4,150.44 mi (6,679.48 km) |
| Romeoville to Hilton Head Island (South Carolina) | 767.72 mi (1,235.53 km) |
| Romeoville to Hinesville (Georgia) | 766.32 mi (1,233.28 km) |
| Romeoville to Hinsdale (Illinois) | 14.67 mi (23.61 km) |
| Romeoville to Hobart (Indiana) | 43.50 mi (70.01 km) |
| Romeoville to Hobbs (New Mexico) | 1,029.84 mi (1,657.37 km) |
| Romeoville to Hobe Sound (Florida) | 1,102.33 mi (1,774.02 km) |
| Romeoville to Hoboken (New Jersey) | 733.41 mi (1,180.30 km) |
| Romeoville to Hockessin (Delaware) | 662.21 mi (1,065.72 km) |
| Romeoville to Hoffman Estates (Illinois) | 29.96 mi (48.22 km) |
