| Knottingley to Oberkirch | 539.13 mi (867.64 km) |
| Knottingley to Obernburg am Main | 517.57 mi (832.96 km) |
| Knottingley to Obernkirchen | 442.08 mi (711.46 km) |
| Knottingley to Oberschleissheim | 671.41 mi (1,080.54 km) |
| Knottingley to Oberstdorf | 665.84 mi (1,071.57 km) |
| Knottingley to Obertraubling | 663.76 mi (1,068.22 km) |
| Knottingley to Obertshausen | 497.40 mi (800.49 km) |
| Knottingley to Oberursel | 482.71 mi (776.85 km) |
| Knottingley to Ochsenfurt | 559.01 mi (899.65 km) |
| Knottingley to Ochsenhausen | 623.00 mi (1,002.62 km) |
| Knottingley to Ochtrup | 365.98 mi (589.00 km) |
| Knottingley to Odenthal | 397.94 mi (640.41 km) |
| Knottingley to Oelde | 413.28 mi (665.10 km) |
| Knottingley to Oelsnitz | 612.34 mi (985.46 km) |
| Knottingley to Oer-Erkenschwick | 383.26 mi (616.80 km) |
