| Antioch to Orangevale (California) | 58.09 mi (93.48 km) |
| Antioch to Orchards (Washington) | 534.06 mi (859.49 km) |
| Antioch to Orcutt (California) | 228.02 mi (366.96 km) |
| Antioch to Oregon (Ohio) | 2,034.85 mi (3,274.78 km) |
| Antioch to Oregon (Wisconsin) | 1,726.58 mi (2,778.67 km) |
| Antioch to Oregon City (Oregon) | 510.39 mi (821.40 km) |
| Antioch to Orem (Utah) | 563.94 mi (907.57 km) |
| Antioch to Orinda (California) | 21.94 mi (35.31 km) |
| Antioch to Orland Park (Illinois) | 1,807.06 mi (2,908.19 km) |
| Antioch to Orlando (Florida) | 2,408.28 mi (3,875.75 km) |
| Antioch to Ormond Beach (Florida) | 2,396.26 mi (3,856.41 km) |
| Antioch to Oro Valley (Arizona) | 720.77 mi (1,159.96 km) |
| Antioch to Oroville (California) | 105.85 mi (170.35 km) |
| Antioch to Oshkosh (Wisconsin) | 1,769.68 mi (2,848.02 km) |
| Antioch to Oskaloosa (Iowa) | 1,560.68 mi (2,511.67 km) |
