| Dunkirk to Oberkirch | 4,016.01 mi (6,463.15 km) |
| Dunkirk to Obernburg am Main | 4,012.68 mi (6,457.79 km) |
| Dunkirk to Obernkirchen | 3,930.45 mi (6,325.45 km) |
| Dunkirk to Oberschleissheim | 4,163.26 mi (6,700.12 km) |
| Dunkirk to Oberstdorf | 4,142.98 mi (6,667.49 km) |
| Dunkirk to Obertraubling | 4,160.45 mi (6,695.59 km) |
| Dunkirk to Obertshausen | 3,993.04 mi (6,426.18 km) |
| Dunkirk to Oberursel | 3,978.52 mi (6,402.81 km) |
| Dunkirk to Ochsenfurt | 4,055.02 mi (6,525.92 km) |
| Dunkirk to Ochsenhausen | 4,106.04 mi (6,608.04 km) |
| Dunkirk to Ochtrup | 3,860.24 mi (6,212.46 km) |
| Dunkirk to Odenthal | 3,894.89 mi (6,268.23 km) |
| Dunkirk to Oelde | 3,908.32 mi (6,289.84 km) |
| Dunkirk to Oelsnitz | 4,108.08 mi (6,611.32 km) |
| Dunkirk to Oer-Erkenschwick | 3,880.45 mi (6,244.97 km) |
