| Copenhagen to Obernburg am Main | 427.81 mi (688.49 km) |
| Copenhagen to Obernkirchen | 274.09 mi (441.10 km) |
| Copenhagen to Oberschleissheim | 514.85 mi (828.57 km) |
| Copenhagen to Oberstdorf | 579.48 mi (932.58 km) |
| Copenhagen to Obertraubling | 463.94 mi (746.65 km) |
| Copenhagen to Obertshausen | 417.55 mi (671.98 km) |
| Copenhagen to Oberursel | 412.88 mi (664.46 km) |
| Copenhagen to Ochsenfurt | 429.28 mi (690.86 km) |
| Copenhagen to Ochsenhausen | 537.03 mi (864.27 km) |
| Copenhagen to Ochtrup | 324.37 mi (522.03 km) |
| Copenhagen to Odenthal | 391.47 mi (630.00 km) |
| Copenhagen to Oelde | 320.91 mi (516.45 km) |
| Copenhagen to Oelsnitz | 363.77 mi (585.43 km) |
| Copenhagen to Oer-Erkenschwick | 353.46 mi (568.84 km) |
| Copenhagen to Oerlinghausen | 301.57 mi (485.33 km) |
