| Thorne to Oberkirch | 525.63 mi (845.92 km) |
| Thorne to Obernburg am Main | 503.94 mi (811.01 km) |
| Thorne to Obernkirchen | 429.31 mi (690.91 km) |
| Thorne to Oberschleissheim | 657.76 mi (1,058.57 km) |
| Thorne to Oberstdorf | 652.30 mi (1,049.77 km) |
| Thorne to Obertraubling | 650.17 mi (1,046.34 km) |
| Thorne to Obertshausen | 483.77 mi (778.56 km) |
| Thorne to Oberursel | 469.08 mi (754.91 km) |
| Thorne to Ochsenfurt | 545.39 mi (877.73 km) |
| Thorne to Ochsenhausen | 609.40 mi (980.74 km) |
| Thorne to Ochtrup | 352.89 mi (567.93 km) |
| Thorne to Odenthal | 384.34 mi (618.53 km) |
| Thorne to Oelde | 400.09 mi (643.89 km) |
| Thorne to Oelsnitz | 599.04 mi (964.05 km) |
| Thorne to Oer-Erkenschwick | 369.86 mi (595.23 km) |
