| Chickasha to Oberkirch | 5,092.77 mi (8,196.01 km) |
| Chickasha to Obernburg am Main | 5,079.92 mi (8,175.33 km) |
| Chickasha to Obernkirchen | 4,982.94 mi (8,019.26 km) |
| Chickasha to Oberschleissheim | 5,233.45 mi (8,422.42 km) |
| Chickasha to Oberstdorf | 5,220.55 mi (8,401.67 km) |
| Chickasha to Obertraubling | 5,225.24 mi (8,409.21 km) |
| Chickasha to Obertshausen | 5,059.70 mi (8,142.80 km) |
| Chickasha to Oberursel | 5,044.98 mi (8,119.12 km) |
| Chickasha to Ochsenfurt | 5,121.14 mi (8,241.68 km) |
| Chickasha to Ochsenhausen | 5,181.00 mi (8,338.02 km) |
| Chickasha to Ochtrup | 4,917.69 mi (7,914.26 km) |
| Chickasha to Odenthal | 4,959.80 mi (7,982.02 km) |
| Chickasha to Oelde | 4,965.91 mi (7,991.87 km) |
| Chickasha to Oelsnitz | 5,164.46 mi (8,311.39 km) |
| Chickasha to Oer-Erkenschwick | 4,941.32 mi (7,952.29 km) |
