| Rietavas to Oberkirch | 766.66 mi (1,233.81 km) |
| Rietavas to Obernburg am Main | 669.62 mi (1,077.65 km) |
| Rietavas to Obernkirchen | 571.43 mi (919.63 km) |
| Rietavas to Oberschleissheim | 677.35 mi (1,090.08 km) |
| Rietavas to Oberstdorf | 759.56 mi (1,222.40 km) |
| Rietavas to Obertraubling | 621.36 mi (999.98 km) |
| Rietavas to Obertshausen | 669.53 mi (1,077.50 km) |
| Rietavas to Oberursel | 672.12 mi (1,081.67 km) |
| Rietavas to Ochsenfurt | 648.67 mi (1,043.93 km) |
| Rietavas to Ochsenhausen | 732.98 mi (1,179.62 km) |
| Rietavas to Ochtrup | 644.96 mi (1,037.96 km) |
| Rietavas to Odenthal | 689.22 mi (1,109.20 km) |
| Rietavas to Oelde | 622.04 mi (1,001.08 km) |
| Rietavas to Oelsnitz | 545.45 mi (877.82 km) |
| Rietavas to Oer-Erkenschwick | 661.83 mi (1,065.11 km) |
