| Bydgoszcz to Oberkirch | 535.73 mi (862.17 km) |
| Bydgoszcz to Obernburg am Main | 443.08 mi (713.07 km) |
| Bydgoszcz to Obernkirchen | 376.37 mi (605.71 km) |
| Bydgoszcz to Oberschleissheim | 438.54 mi (705.76 km) |
| Bydgoszcz to Oberstdorf | 521.00 mi (838.47 km) |
| Bydgoszcz to Obertraubling | 382.73 mi (615.95 km) |
| Bydgoszcz to Obertshausen | 446.06 mi (717.86 km) |
| Bydgoszcz to Oberursel | 450.94 mi (725.71 km) |
| Bydgoszcz to Ochsenfurt | 417.44 mi (671.80 km) |
| Bydgoszcz to Ochsenhausen | 495.87 mi (798.03 km) |
| Bydgoszcz to Ochtrup | 456.94 mi (735.37 km) |
| Bydgoszcz to Odenthal | 483.61 mi (778.30 km) |
| Bydgoszcz to Oelde | 423.62 mi (681.74 km) |
| Bydgoszcz to Oelsnitz | 311.53 mi (501.35 km) |
| Bydgoszcz to Oer-Erkenschwick | 464.25 mi (747.14 km) |
