| Fort Lewis to Indianola (Iowa) | 1,480.00 mi (2,381.83 km) |
| Fort Lewis to Indio (California) | 980.58 mi (1,578.09 km) |
| Fort Lewis to Inglewood (California) | 934.13 mi (1,503.34 km) |
| Fort Lewis to Inkster (Michigan) | 1,935.31 mi (3,114.58 km) |
| Fort Lewis to Inver Grove Heights (Minnesota) | 1,417.42 mi (2,281.12 km) |
| Fort Lewis to Inwood (New York) | 2,432.08 mi (3,914.05 km) |
| Fort Lewis to Iona (Florida) | 2,616.01 mi (4,210.07 km) |
| Fort Lewis to Ionia (Michigan) | 1,834.64 mi (2,952.57 km) |
| Fort Lewis to Iowa City (Iowa) | 1,567.00 mi (2,521.85 km) |
| Fort Lewis to Irmo (South Carolina) | 2,315.87 mi (3,727.03 km) |
| Fort Lewis to Irondale (Alabama) | 2,086.13 mi (3,357.30 km) |
| Fort Lewis to Ironton (Ohio) | 2,081.53 mi (3,349.91 km) |
| Fort Lewis to Irvine (California) | 960.34 mi (1,545.51 km) |
| Fort Lewis to Irving (Texas) | 1,661.99 mi (2,674.72 km) |
| Fort Lewis to Isabela (Puerto Rico) | 3,682.49 mi (5,926.39 km) |
