| Rapid City to Indianapolis (Indiana) | 924.51 mi (1,487.85 km) |
| Rapid City to Indianola (Iowa) | 524.25 mi (843.69 km) |
| Rapid City to Indio (California) | 997.50 mi (1,605.32 km) |
| Rapid City to Inglewood (California) | 1,068.20 mi (1,719.10 km) |
| Rapid City to Inkster (Michigan) | 1,007.86 mi (1,622.00 km) |
| Rapid City to Inver Grove Heights (Minnesota) | 503.54 mi (810.36 km) |
| Rapid City to Inwood (New York) | 1,515.33 mi (2,438.69 km) |
| Rapid City to Iona (Florida) | 1,695.55 mi (2,728.73 km) |
| Rapid City to Ionia (Michigan) | 910.45 mi (1,465.23 km) |
| Rapid City to Iowa City (Iowa) | 614.50 mi (988.94 km) |
| Rapid City to Irmo (South Carolina) | 1,361.00 mi (2,190.31 km) |
| Rapid City to Irondale (Alabama) | 1,146.85 mi (1,845.68 km) |
| Rapid City to Ironton (Ohio) | 1,129.23 mi (1,817.31 km) |
| Rapid City to Irvine (California) | 1,059.41 mi (1,704.96 km) |
| Rapid City to Irving (Texas) | 844.68 mi (1,359.39 km) |
