| Copenhagen to Oestrich-Winkel | 435.85 mi (701.43 km) |
| Copenhagen to Offenburg | 535.31 mi (861.50 km) |
| Copenhagen to Oftersheim | 466.55 mi (750.84 km) |
| Copenhagen to Ohrdruf | 343.42 mi (552.68 km) |
| Copenhagen to Ohringen | 465.63 mi (749.35 km) |
| Copenhagen to Olbernhau | 347.56 mi (559.34 km) |
| Copenhagen to Olching | 519.27 mi (835.68 km) |
| Copenhagen to Oldenburg | 247.44 mi (398.21 km) |
| Copenhagen to Oldenburg in Holstein | 116.19 mi (186.99 km) |
| Copenhagen to Olfen | 345.96 mi (556.78 km) |
| Copenhagen to Olpe | 376.35 mi (605.67 km) |
| Copenhagen to Olsberg | 342.66 mi (551.46 km) |
| Copenhagen to Oranienburg | 203.67 mi (327.77 km) |
| Copenhagen to Ortenberg | 395.41 mi (636.35 km) |
| Copenhagen to Oschatz | 303.15 mi (487.87 km) |
