| Defiance to Oberkirch | 4,267.41 mi (6,867.74 km) |
| Defiance to Obernburg am Main | 4,260.89 mi (6,857.24 km) |
| Defiance to Obernkirchen | 4,173.73 mi (6,716.96 km) |
| Defiance to Oberschleissheim | 4,412.60 mi (7,101.39 km) |
| Defiance to Oberstdorf | 4,394.77 mi (7,072.70 km) |
| Defiance to Obertraubling | 4,408.01 mi (7,094.01 km) |
| Defiance to Obertshausen | 4,241.04 mi (6,825.29 km) |
| Defiance to Oberursel | 4,226.44 mi (6,801.80 km) |
| Defiance to Ochsenfurt | 4,302.91 mi (6,924.86 km) |
| Defiance to Ochsenhausen | 4,356.92 mi (7,011.79 km) |
| Defiance to Ochtrup | 4,105.05 mi (6,606.44 km) |
| Defiance to Odenthal | 4,142.20 mi (6,666.23 km) |
| Defiance to Oelde | 4,153.24 mi (6,683.99 km) |
| Defiance to Oelsnitz | 4,352.84 mi (7,005.23 km) |
| Defiance to Oer-Erkenschwick | 4,126.40 mi (6,640.81 km) |
