| Ustron to Oberkirch | 491.52 mi (791.02 km) |
| Ustron to Obernburg am Main | 431.24 mi (694.01 km) |
| Ustron to Obernkirchen | 456.38 mi (734.47 km) |
| Ustron to Oberschleissheim | 343.69 mi (553.11 km) |
| Ustron to Oberstdorf | 421.22 mi (677.89 km) |
| Ustron to Obertraubling | 303.53 mi (488.48 km) |
| Ustron to Obertshausen | 444.47 mi (715.31 km) |
| Ustron to Oberursel | 455.79 mi (733.53 km) |
| Ustron to Ochsenfurt | 390.74 mi (628.84 km) |
| Ustron to Ochsenhausen | 418.12 mi (672.90 km) |
| Ustron to Ochtrup | 533.41 mi (858.44 km) |
| Ustron to Odenthal | 522.69 mi (841.18 km) |
| Ustron to Oelde | 487.67 mi (784.82 km) |
| Ustron to Oelsnitz | 298.52 mi (480.42 km) |
| Ustron to Oer-Erkenschwick | 522.67 mi (841.16 km) |
