| Erzurum to Oberkirch | 1,732.00 mi (2,787.39 km) |
| Erzurum to Obernburg am Main | 1,699.82 mi (2,735.60 km) |
| Erzurum to Obernkirchen | 1,741.35 mi (2,802.43 km) |
| Erzurum to Oberschleissheim | 1,571.10 mi (2,528.45 km) |
| Erzurum to Oberstdorf | 1,621.24 mi (2,609.14 km) |
| Erzurum to Obertraubling | 1,554.16 mi (2,501.18 km) |
| Erzurum to Obertshausen | 1,716.37 mi (2,762.23 km) |
| Erzurum to Oberursel | 1,729.40 mi (2,783.19 km) |
| Erzurum to Ochsenfurt | 1,656.70 mi (2,666.20 km) |
| Erzurum to Ochsenhausen | 1,642.69 mi (2,643.66 km) |
| Erzurum to Ochtrup | 1,818.89 mi (2,927.21 km) |
| Erzurum to Odenthal | 1,803.73 mi (2,902.82 km) |
| Erzurum to Oelde | 1,772.97 mi (2,853.33 km) |
| Erzurum to Oelsnitz | 1,579.14 mi (2,541.38 km) |
| Erzurum to Oer-Erkenschwick | 1,807.17 mi (2,908.36 km) |
