| University of California-Santa Barbara to Oberkirch | 5,870.99 mi (9,448.45 km) |
| University of California-Santa Barbara to Obernburg am Main | 5,833.28 mi (9,387.75 km) |
| University of California-Santa Barbara to Obernkirchen | 5,704.56 mi (9,180.61 km) |
| University of California-Santa Barbara to Oberschleissheim | 5,987.81 mi (9,636.46 km) |
| University of California-Santa Barbara to Oberstdorf | 5,995.74 mi (9,649.21 km) |
| University of California-Santa Barbara to Obertraubling | 5,965.80 mi (9,601.03 km) |
| University of California-Santa Barbara to Obertshausen | 5,812.47 mi (9,354.27 km) |
| University of California-Santa Barbara to Oberursel | 5,797.92 mi (9,330.86 km) |
| University of California-Santa Barbara to Ochsenfurt | 5,869.79 mi (9,446.52 km) |
| University of California-Santa Barbara to Ochsenhausen | 5,950.57 mi (9,576.52 km) |
| University of California-Santa Barbara to Ochtrup | 5,654.23 mi (9,099.60 km) |
| University of California-Santa Barbara to Odenthal | 5,712.63 mi (9,193.60 km) |
| University of California-Santa Barbara to Oelde | 5,700.49 mi (9,174.05 km) |
| University of California-Santa Barbara to Oelsnitz | 5,886.71 mi (9,473.75 km) |
| University of California-Santa Barbara to Oer-Erkenschwick | 5,685.03 mi (9,149.17 km) |
