| Oklahoma City to Orangevale (California) | 1,321.81 mi (2,127.25 km) |
| Oklahoma City to Orchards (Washington) | 1,481.87 mi (2,384.84 km) |
| Oklahoma City to Orcutt (California) | 1,291.67 mi (2,078.73 km) |
| Oklahoma City to Oregon (Ohio) | 871.00 mi (1,401.74 km) |
| Oklahoma City to Oregon (Wisconsin) | 673.67 mi (1,084.17 km) |
| Oklahoma City to Oregon City (Oregon) | 1,476.82 mi (2,376.72 km) |
| Oklahoma City to Orem (Utah) | 841.24 mi (1,353.85 km) |
| Oklahoma City to Orinda (California) | 1,372.94 mi (2,209.53 km) |
| Oklahoma City to Orland Park (Illinois) | 671.60 mi (1,080.84 km) |
| Oklahoma City to Orlando (Florida) | 1,062.14 mi (1,709.35 km) |
| Oklahoma City to Ormond Beach (Florida) | 1,046.40 mi (1,684.03 km) |
| Oklahoma City to Oro Valley (Arizona) | 799.14 mi (1,286.09 km) |
| Oklahoma City to Oroville (California) | 1,343.42 mi (2,162.02 km) |
| Oklahoma City to Oshkosh (Wisconsin) | 757.68 mi (1,219.37 km) |
| Oklahoma City to Oskaloosa (Iowa) | 481.08 mi (774.22 km) |
