| Santa Clara to Oberkirch | 5,757.73 mi (9,266.17 km) |
| Santa Clara to Obernburg am Main | 5,715.11 mi (9,197.59 km) |
| Santa Clara to Obernkirchen | 5,581.04 mi (8,981.82 km) |
| Santa Clara to Oberschleissheim | 5,868.64 mi (9,444.66 km) |
| Santa Clara to Oberstdorf | 5,880.84 mi (9,464.29 km) |
| Santa Clara to Obertraubling | 5,843.98 mi (9,404.98 km) |
| Santa Clara to Obertshausen | 5,694.36 mi (9,164.18 km) |
| Santa Clara to Oberursel | 5,679.96 mi (9,141.01 km) |
| Santa Clara to Ochsenfurt | 5,750.38 mi (9,254.34 km) |
| Santa Clara to Ochsenhausen | 5,834.85 mi (9,390.28 km) |
| Santa Clara to Ochtrup | 5,534.08 mi (8,906.25 km) |
| Santa Clara to Odenthal | 5,595.33 mi (9,004.82 km) |
| Santa Clara to Oelde | 5,579.58 mi (8,979.47 km) |
| Santa Clara to Oelsnitz | 5,761.86 mi (9,272.82 km) |
| Santa Clara to Oer-Erkenschwick | 5,566.09 mi (8,957.75 km) |
