| Jackson to Olympia Heights (Florida) | 749.90 mi (1,206.84 km) |
| Jackson to Omaha (Nebraska) | 697.12 mi (1,121.91 km) |
| Jackson to On Top of the World Designated Place (Florida) | 520.24 mi (837.25 km) |
| Jackson to Onalaska (Wisconsin) | 801.40 mi (1,289.73 km) |
| Jackson to Oneida (New York) | 1,085.88 mi (1,747.56 km) |
| Jackson to Oneonta (New York) | 1,084.31 mi (1,745.02 km) |
| Jackson to Ontario (California) | 1,583.94 mi (2,549.10 km) |
| Jackson to Ontario (Oregon) | 1,652.93 mi (2,660.14 km) |
| Jackson to Opa-locka (Florida) | 746.25 mi (1,200.98 km) |
| Jackson to Opelika (Alabama) | 282.80 mi (455.13 km) |
| Jackson to Opelousas (Louisiana) | 165.67 mi (266.62 km) |
| Jackson to Orange (California) | 1,597.31 mi (2,570.63 km) |
| Jackson to Orange (Texas) | 258.65 mi (416.26 km) |
| Jackson to Orange City (Florida) | 579.48 mi (932.58 km) |
| Jackson to Orangeburg (South Carolina) | 547.99 mi (881.90 km) |
