| Lewiston to Olympia Heights (Florida) | 1,391.16 mi (2,238.85 km) |
| Lewiston to Omaha (Nebraska) | 1,323.70 mi (2,130.29 km) |
| Lewiston to On Top of the World Designated Place (Florida) | 1,231.46 mi (1,981.84 km) |
| Lewiston to Onalaska (Wisconsin) | 1,043.11 mi (1,678.72 km) |
| Lewiston to Oneida (New York) | 283.71 mi (456.58 km) |
| Lewiston to Oneonta (New York) | 271.07 mi (436.24 km) |
| Lewiston to Ontario (California) | 2,599.50 mi (4,183.49 km) |
| Lewiston to Ontario (Oregon) | 2,291.91 mi (3,688.47 km) |
| Lewiston to Opa-locka (Florida) | 1,377.95 mi (2,217.60 km) |
| Lewiston to Opelika (Alabama) | 1,137.68 mi (1,830.92 km) |
| Lewiston to Opelousas (Louisiana) | 1,517.79 mi (2,442.64 km) |
| Lewiston to Orange (California) | 2,618.34 mi (4,213.81 km) |
| Lewiston to Orange (Texas) | 1,609.33 mi (2,589.97 km) |
| Lewiston to Orange City (Florida) | 1,213.13 mi (1,952.34 km) |
| Lewiston to Orangeburg (South Carolina) | 930.09 mi (1,496.84 km) |
