| Caykara to Oberkirch | 1,655.62 mi (2,664.46 km) |
| Caykara to Obernburg am Main | 1,622.25 mi (2,610.75 km) |
| Caykara to Obernkirchen | 1,662.40 mi (2,675.37 km) |
| Caykara to Oberschleissheim | 1,494.65 mi (2,405.41 km) |
| Caykara to Oberstdorf | 1,545.83 mi (2,487.77 km) |
| Caykara to Obertraubling | 1,476.96 mi (2,376.94 km) |
| Caykara to Obertshausen | 1,638.66 mi (2,637.17 km) |
| Caykara to Oberursel | 1,651.61 mi (2,658.01 km) |
| Caykara to Ochsenfurt | 1,579.18 mi (2,541.44 km) |
| Caykara to Ochsenhausen | 1,566.60 mi (2,521.20 km) |
| Caykara to Ochtrup | 1,740.09 mi (2,800.41 km) |
| Caykara to Odenthal | 1,725.53 mi (2,776.98 km) |
| Caykara to Oelde | 1,694.28 mi (2,726.68 km) |
| Caykara to Oelsnitz | 1,500.85 mi (2,415.38 km) |
| Caykara to Oer-Erkenschwick | 1,728.64 mi (2,781.97 km) |
