| Saint Albans to Oberkirch | 433.80 mi (698.14 km) |
| Saint Albans to Obernburg am Main | 434.15 mi (698.70 km) |
| Saint Albans to Obernkirchen | 403.31 mi (649.06 km) |
| Saint Albans to Oberschleissheim | 580.53 mi (934.27 km) |
| Saint Albans to Oberstdorf | 561.55 mi (903.72 km) |
| Saint Albans to Obertraubling | 582.94 mi (938.16 km) |
| Saint Albans to Obertshausen | 415.82 mi (669.20 km) |
| Saint Albans to Oberursel | 401.98 mi (646.93 km) |
| Saint Albans to Ochsenfurt | 477.40 mi (768.30 km) |
| Saint Albans to Ochsenhausen | 522.88 mi (841.49 km) |
| Saint Albans to Ochtrup | 321.66 mi (517.66 km) |
| Saint Albans to Odenthal | 324.99 mi (523.03 km) |
| Saint Albans to Oelde | 362.47 mi (583.34 km) |
| Saint Albans to Oelsnitz | 549.74 mi (884.73 km) |
| Saint Albans to Oer-Erkenschwick | 324.84 mi (522.78 km) |
