| Okmulgee to Oberkirch | 4,990.20 mi (8,030.95 km) |
| Okmulgee to Obernburg am Main | 4,978.86 mi (8,012.70 km) |
| Okmulgee to Obernkirchen | 4,884.05 mi (7,860.12 km) |
| Okmulgee to Oberschleissheim | 5,132.02 mi (8,259.18 km) |
| Okmulgee to Oberstdorf | 5,117.92 mi (8,236.50 km) |
| Okmulgee to Obertraubling | 5,124.65 mi (8,247.34 km) |
| Okmulgee to Obertshausen | 4,958.72 mi (7,980.28 km) |
| Okmulgee to Oberursel | 4,944.02 mi (7,956.64 km) |
| Okmulgee to Ochsenfurt | 5,020.28 mi (8,079.37 km) |
| Okmulgee to Ochsenhausen | 5,078.78 mi (8,173.50 km) |
| Okmulgee to Ochtrup | 4,818.02 mi (7,753.85 km) |
| Okmulgee to Odenthal | 4,859.02 mi (7,819.84 km) |
| Okmulgee to Oelde | 4,866.25 mi (7,831.48 km) |
| Okmulgee to Oelsnitz | 5,065.12 mi (8,151.52 km) |
| Okmulgee to Oer-Erkenschwick | 4,841.15 mi (7,791.07 km) |
