| Fort Lewis to Oak Harbor (Washington) | 83.03 mi (133.63 km) |
| Fort Lewis to Oak Hills (Oregon) | 108.23 mi (174.18 km) |
| Fort Lewis to Oak Lawn (Illinois) | 1,742.99 mi (2,805.08 km) |
| Fort Lewis to Oak Park (California) | 913.71 mi (1,470.48 km) |
| Fort Lewis to Oak Park (Illinois) | 1,736.37 mi (2,794.41 km) |
| Fort Lewis to Oak Park (Michigan) | 1,936.82 mi (3,117.02 km) |
| Fort Lewis to Oak Ridge (Florida) | 2,548.66 mi (4,101.67 km) |
| Fort Lewis to Oak Ridge (New Jersey) | 2,384.44 mi (3,837.38 km) |
| Fort Lewis to Oak Ridge (Tennessee) | 2,098.57 mi (3,377.32 km) |
| Fort Lewis to Oakdale (California) | 650.79 mi (1,047.35 km) |
| Fort Lewis to Oakdale (Minnesota) | 1,418.66 mi (2,283.11 km) |
| Fort Lewis to Oakland (California) | 643.17 mi (1,035.08 km) |
| Fort Lewis to Oakland (New Jersey) | 2,396.41 mi (3,856.65 km) |
| Fort Lewis to Oakland Park (Florida) | 2,713.12 mi (4,366.34 km) |
| Fort Lewis to Oakleaf Plantation (Florida) | 2,452.93 mi (3,947.60 km) |
