| Tulsa to Oberkirch | 4,960.09 mi (7,982.49 km) |
| Tulsa to Obernburg am Main | 4,948.22 mi (7,963.39 km) |
| Tulsa to Obernkirchen | 4,852.73 mi (7,809.72 km) |
| Tulsa to Oberschleissheim | 5,101.51 mi (8,210.08 km) |
| Tulsa to Oberstdorf | 5,087.83 mi (8,188.08 km) |
| Tulsa to Obertraubling | 5,093.87 mi (8,197.79 km) |
| Tulsa to Obertshausen | 4,928.05 mi (7,930.93 km) |
| Tulsa to Oberursel | 4,913.35 mi (7,907.28 km) |
| Tulsa to Ochsenfurt | 4,989.58 mi (8,029.96 km) |
| Tulsa to Ochsenhausen | 5,048.54 mi (8,124.85 km) |
| Tulsa to Ochtrup | 4,786.94 mi (7,703.83 km) |
| Tulsa to Odenthal | 4,828.29 mi (7,770.38 km) |
| Tulsa to Oelde | 4,835.17 mi (7,781.45 km) |
| Tulsa to Oelsnitz | 5,033.94 mi (8,101.35 km) |
| Tulsa to Oer-Erkenschwick | 4,810.22 mi (7,741.30 km) |
