| Le Grand-Saconnex to Oberkirch | 183.61 mi (295.49 km) |
| Le Grand-Saconnex to Obernburg am Main | 285.65 mi (459.70 km) |
| Le Grand-Saconnex to Obernkirchen | 438.17 mi (705.17 km) |
| Le Grand-Saconnex to Oberschleissheim | 291.06 mi (468.41 km) |
| Le Grand-Saconnex to Oberstdorf | 212.89 mi (342.61 km) |
| Le Grand-Saconnex to Obertraubling | 339.10 mi (545.73 km) |
| Le Grand-Saconnex to Obertshausen | 292.93 mi (471.42 km) |
| Le Grand-Saconnex to Oberursel | 296.72 mi (477.52 km) |
| Le Grand-Saconnex to Ochsenfurt | 298.50 mi (480.39 km) |
| Le Grand-Saconnex to Ochsenhausen | 220.30 mi (354.54 km) |
| Le Grand-Saconnex to Ochtrup | 415.47 mi (668.63 km) |
| Le Grand-Saconnex to Odenthal | 334.77 mi (538.76 km) |
| Le Grand-Saconnex to Oelde | 397.69 mi (640.02 km) |
| Le Grand-Saconnex to Oelsnitz | 400.74 mi (644.93 km) |
| Le Grand-Saconnex to Oer-Erkenschwick | 377.23 mi (607.10 km) |
