| Maryland Heights to Indianapolis (Indiana) | 242.87 mi (390.86 km) |
| Maryland Heights to Indianola (Iowa) | 245.11 mi (394.46 km) |
| Maryland Heights to Indio (California) | 1,471.17 mi (2,367.61 km) |
| Maryland Heights to Inglewood (California) | 1,579.18 mi (2,541.44 km) |
| Maryland Heights to Inkster (Michigan) | 449.74 mi (723.78 km) |
| Maryland Heights to Inver Grove Heights (Minnesota) | 442.33 mi (711.86 km) |
| Maryland Heights to Inwood (New York) | 897.71 mi (1,444.73 km) |
| Maryland Heights to Iona (Florida) | 976.85 mi (1,572.08 km) |
| Maryland Heights to Ionia (Michigan) | 407.61 mi (655.98 km) |
| Maryland Heights to Iowa City (Iowa) | 210.43 mi (338.65 km) |
| Maryland Heights to Irmo (South Carolina) | 606.15 mi (975.50 km) |
| Maryland Heights to Irondale (Alabama) | 416.02 mi (669.51 km) |
| Maryland Heights to Ironton (Ohio) | 420.94 mi (677.44 km) |
| Maryland Heights to Irvine (California) | 1,555.24 mi (2,502.91 km) |
| Maryland Heights to Irving (Texas) | 544.20 mi (875.80 km) |
