| Antioch to Olympia Heights (Florida) | 2,552.12 mi (4,107.25 km) |
| Antioch to Omaha (Nebraska) | 1,383.50 mi (2,226.53 km) |
| Antioch to On Top of the World Designated Place (Florida) | 2,337.53 mi (3,761.89 km) |
| Antioch to Onalaska (Wisconsin) | 1,637.79 mi (2,635.77 km) |
| Antioch to Oneida (New York) | 2,417.44 mi (3,890.49 km) |
| Antioch to Oneonta (New York) | 2,453.50 mi (3,948.53 km) |
| Antioch to Ontario (California) | 358.96 mi (577.69 km) |
| Antioch to Ontario (Oregon) | 487.37 mi (784.35 km) |
| Antioch to Opa-locka (Florida) | 2,550.65 mi (4,104.87 km) |
| Antioch to Opelika (Alabama) | 2,072.27 mi (3,334.99 km) |
| Antioch to Opelousas (Louisiana) | 1,764.80 mi (2,840.17 km) |
| Antioch to Orange (California) | 364.18 mi (586.10 km) |
| Antioch to Orange (Texas) | 1,686.56 mi (2,714.26 km) |
| Antioch to Orange City (Florida) | 2,396.98 mi (3,857.57 km) |
| Antioch to Orangeburg (South Carolina) | 2,297.77 mi (3,697.91 km) |
