| Erzurum to Oerlinghausen | 1,754.07 mi (2,822.90 km) |
| Erzurum to Oestrich-Winkel | 1,751.77 mi (2,819.21 km) |
| Erzurum to Offenburg | 1,738.21 mi (2,797.38 km) |
| Erzurum to Oftersheim | 1,718.31 mi (2,765.36 km) |
| Erzurum to Ohrdruf | 1,647.34 mi (2,651.14 km) |
| Erzurum to Ohringen | 1,675.63 mi (2,696.67 km) |
| Erzurum to Olbernhau | 1,535.25 mi (2,470.75 km) |
| Erzurum to Olching | 1,581.81 mi (2,545.68 km) |
| Erzurum to Oldenburg | 1,795.15 mi (2,889.01 km) |
| Erzurum to Oldenburg in Holstein | 1,719.85 mi (2,767.84 km) |
| Erzurum to Olfen | 1,802.83 mi (2,901.38 km) |
| Erzurum to Olpe | 1,773.04 mi (2,853.44 km) |
| Erzurum to Olsberg | 1,750.90 mi (2,817.81 km) |
| Erzurum to Oranienburg | 1,589.42 mi (2,557.93 km) |
| Erzurum to Ortenberg | 1,710.94 mi (2,753.49 km) |
