| Ventspils to Oberkirch | 827.56 mi (1,331.83 km) |
| Ventspils to Obernburg am Main | 727.11 mi (1,170.17 km) |
| Ventspils to Obernkirchen | 607.69 mi (977.99 km) |
| Ventspils to Oberschleissheim | 755.54 mi (1,215.93 km) |
| Ventspils to Oberstdorf | 835.66 mi (1,344.86 km) |
| Ventspils to Obertraubling | 699.00 mi (1,124.93 km) |
| Ventspils to Obertshausen | 723.96 mi (1,165.09 km) |
| Ventspils to Oberursel | 724.36 mi (1,165.74 km) |
| Ventspils to Ochsenfurt | 711.88 mi (1,145.65 km) |
| Ventspils to Ochsenhausen | 804.59 mi (1,294.86 km) |
| Ventspils to Ochtrup | 673.64 mi (1,084.13 km) |
| Ventspils to Odenthal | 728.40 mi (1,172.25 km) |
| Ventspils to Oelde | 658.38 mi (1,059.56 km) |
| Ventspils to Oelsnitz | 614.31 mi (988.64 km) |
| Ventspils to Oer-Erkenschwick | 696.18 mi (1,120.39 km) |
