| Oakton to Olympia Heights (Florida) | 926.56 mi (1,491.15 km) |
| Oakton to Omaha (Nebraska) | 1,002.82 mi (1,613.88 km) |
| Oakton to On Top of the World Designated Place (Florida) | 733.44 mi (1,180.37 km) |
| Oakton to Onalaska (Wisconsin) | 797.95 mi (1,284.17 km) |
| Oakton to Oneida (New York) | 301.73 mi (485.58 km) |
| Oakton to Oneonta (New York) | 272.81 mi (439.04 km) |
| Oakton to Ontario (California) | 2,246.15 mi (3,614.83 km) |
| Oakton to Ontario (Oregon) | 2,064.41 mi (3,322.34 km) |
| Oakton to Opa-locka (Florida) | 913.69 mi (1,470.44 km) |
| Oakton to Opelika (Alabama) | 624.04 mi (1,004.29 km) |
| Oakton to Opelousas (Louisiana) | 1,017.03 mi (1,636.76 km) |
| Oakton to Orange (California) | 2,263.45 mi (3,642.67 km) |
| Oakton to Orange (Texas) | 1,113.10 mi (1,791.36 km) |
| Oakton to Orange City (Florida) | 724.52 mi (1,166.01 km) |
| Oakton to Orangeburg (South Carolina) | 422.43 mi (679.83 km) |
