| Keystone to Indianapolis (Indiana) | 829.71 mi (1,335.30 km) |
| Keystone to Indianola (Iowa) | 1,103.96 mi (1,776.66 km) |
| Keystone to Indio (California) | 2,021.40 mi (3,253.14 km) |
| Keystone to Inglewood (California) | 2,142.81 mi (3,448.52 km) |
| Keystone to Inkster (Michigan) | 979.34 mi (1,576.10 km) |
| Keystone to Inver Grove Heights (Minnesota) | 1,288.94 mi (2,074.35 km) |
| Keystone to Inwood (New York) | 998.44 mi (1,606.83 km) |
| Keystone to Iona (Florida) | 118.31 mi (190.40 km) |
| Keystone to Ionia (Michigan) | 1,035.01 mi (1,665.68 km) |
| Keystone to Iowa City (Iowa) | 1,061.25 mi (1,707.92 km) |
| Keystone to Irmo (South Carolina) | 420.79 mi (677.20 km) |
| Keystone to Irondale (Alabama) | 444.75 mi (715.75 km) |
| Keystone to Ironton (Ohio) | 718.66 mi (1,156.57 km) |
| Keystone to Irvine (California) | 2,109.76 mi (3,395.33 km) |
| Keystone to Irving (Texas) | 914.77 mi (1,472.18 km) |
