| Plant City to Olympia (Washington) | 2,551.88 mi (4,106.85 km) |
| Plant City to Olympia Heights (Florida) | 192.58 mi (309.92 km) |
| Plant City to Omaha (Nebraska) | 1,207.25 mi (1,942.88 km) |
| Plant City to On Top of the World Designated Place (Florida) | 76.11 mi (122.49 km) |
| Plant City to Onalaska (Wisconsin) | 1,207.01 mi (1,942.49 km) |
| Plant City to Oneida (New York) | 1,101.35 mi (1,772.46 km) |
| Plant City to Oneonta (New York) | 1,073.25 mi (1,727.22 km) |
| Plant City to Ontario (California) | 2,130.92 mi (3,429.39 km) |
| Plant City to Ontario (Oregon) | 2,216.42 mi (3,566.98 km) |
| Plant City to Opa-locka (Florida) | 185.82 mi (299.05 km) |
| Plant City to Opelika (Alabama) | 375.20 mi (603.82 km) |
| Plant City to Opelousas (Louisiana) | 624.70 mi (1,005.36 km) |
| Plant City to Orange (California) | 2,142.93 mi (3,448.71 km) |
| Plant City to Orange (Texas) | 717.56 mi (1,154.81 km) |
| Plant City to Orange City (Florida) | 81.25 mi (130.75 km) |
