| Fort Lewis to Oswego (Illinois) | 1,716.37 mi (2,762.23 km) |
| Fort Lewis to Oswego (New York) | 2,221.34 mi (3,574.91 km) |
| Fort Lewis to Otsego (Minnesota) | 1,382.61 mi (2,225.09 km) |
| Fort Lewis to Ottawa (Illinois) | 1,702.81 mi (2,740.40 km) |
| Fort Lewis to Ottawa (Kansas) | 1,492.70 mi (2,402.28 km) |
| Fort Lewis to Ottumwa (Iowa) | 1,544.01 mi (2,484.85 km) |
| Fort Lewis to Overland (Missouri) | 1,715.56 mi (2,760.92 km) |
| Fort Lewis to Overland Park (Kansas) | 1,508.79 mi (2,428.15 km) |
| Fort Lewis to Overlea (Maryland) | 2,343.28 mi (3,771.14 km) |
| Fort Lewis to Oviedo (Florida) | 2,550.58 mi (4,104.77 km) |
| Fort Lewis to Owasso (Oklahoma) | 1,557.55 mi (2,506.64 km) |
| Fort Lewis to Owatonna (Minnesota) | 1,424.87 mi (2,293.11 km) |
| Fort Lewis to Owensboro (Kentucky) | 1,900.41 mi (3,058.41 km) |
| Fort Lewis to Owings Mills (Maryland) | 2,328.87 mi (3,747.95 km) |
| Fort Lewis to Owosso (Michigan) | 1,876.16 mi (3,019.40 km) |
