| Clive to Olympia Heights (Florida) | 1,339.63 mi (2,155.93 km) |
| Clive to Omaha (Nebraska) | 119.30 mi (191.99 km) |
| Clive to On Top of the World Designated Place (Florida) | 1,078.44 mi (1,735.58 km) |
| Clive to Onalaska (Wisconsin) | 204.80 mi (329.59 km) |
| Clive to Oneida (New York) | 929.78 mi (1,496.34 km) |
| Clive to Oneonta (New York) | 961.06 mi (1,546.67 km) |
| Clive to Ontario (California) | 1,395.02 mi (2,245.07 km) |
| Clive to Ontario (Oregon) | 1,182.40 mi (1,902.88 km) |
| Clive to Opa-locka (Florida) | 1,332.06 mi (2,143.75 km) |
| Clive to Opelika (Alabama) | 772.34 mi (1,242.96 km) |
| Clive to Opelousas (Louisiana) | 772.13 mi (1,242.63 km) |
| Clive to Orange (California) | 1,413.74 mi (2,275.20 km) |
| Clive to Orange (Texas) | 794.03 mi (1,277.87 km) |
| Clive to Orange City (Florida) | 1,122.37 mi (1,806.29 km) |
| Clive to Orangeburg (South Carolina) | 901.93 mi (1,451.51 km) |
