| Ulus to Oberkirch | 1,284.03 mi (2,066.45 km) |
| Ulus to Obernburg am Main | 1,261.75 mi (2,030.59 km) |
| Ulus to Obernkirchen | 1,323.43 mi (2,129.86 km) |
| Ulus to Oberschleissheim | 1,124.42 mi (1,809.58 km) |
| Ulus to Oberstdorf | 1,168.20 mi (1,880.03 km) |
| Ulus to Obertraubling | 1,113.55 mi (1,792.08 km) |
| Ulus to Obertshausen | 1,279.61 mi (2,059.34 km) |
| Ulus to Oberursel | 1,293.34 mi (2,081.43 km) |
| Ulus to Ochsenfurt | 1,218.41 mi (1,960.83 km) |
| Ulus to Ochsenhausen | 1,193.32 mi (1,920.46 km) |
| Ulus to Ochtrup | 1,396.85 mi (2,248.01 km) |
| Ulus to Odenthal | 1,372.12 mi (2,208.21 km) |
| Ulus to Oelde | 1,349.41 mi (2,171.67 km) |
| Ulus to Oelsnitz | 1,150.85 mi (1,852.11 km) |
| Ulus to Oer-Erkenschwick | 1,380.57 mi (2,221.81 km) |
