| Kennett to Olympia Heights (Florida) | 925.52 mi (1,489.48 km) |
| Kennett to Omaha (Nebraska) | 474.21 mi (763.17 km) |
| Kennett to On Top of the World Designated Place (Florida) | 667.90 mi (1,074.88 km) |
| Kennett to Onalaska (Wisconsin) | 531.95 mi (856.10 km) |
| Kennett to Oneida (New York) | 897.39 mi (1,444.20 km) |
| Kennett to Oneonta (New York) | 906.52 mi (1,458.90 km) |
| Kennett to Ontario (California) | 1,559.22 mi (2,509.33 km) |
| Kennett to Ontario (Oregon) | 1,512.42 mi (2,434.00 km) |
| Kennett to Opa-locka (Florida) | 918.82 mi (1,478.69 km) |
| Kennett to Opelika (Alabama) | 363.20 mi (584.52 km) |
| Kennett to Opelousas (Louisiana) | 411.90 mi (662.89 km) |
| Kennett to Orange (California) | 1,575.09 mi (2,534.87 km) |
| Kennett to Orange (Texas) | 473.98 mi (762.79 km) |
| Kennett to Orange City (Florida) | 716.88 mi (1,153.71 km) |
| Kennett to Orangeburg (South Carolina) | 553.72 mi (891.13 km) |
