| South San Francisco to Oberkirch | 5,753.11 mi (9,258.74 km) |
| South San Francisco to Obernburg am Main | 5,709.76 mi (9,188.97 km) |
| South San Francisco to Obernkirchen | 5,574.89 mi (8,971.91 km) |
| South San Francisco to Oberschleissheim | 5,863.09 mi (9,435.73 km) |
| South San Francisco to Oberstdorf | 5,875.95 mi (9,456.42 km) |
| South San Francisco to Obertraubling | 5,838.03 mi (9,395.41 km) |
| South San Francisco to Obertshausen | 5,689.01 mi (9,155.58 km) |
| South San Francisco to Oberursel | 5,674.64 mi (9,132.45 km) |
| South San Francisco to Ochsenfurt | 5,744.82 mi (9,245.39 km) |
| South San Francisco to Ochsenhausen | 5,829.84 mi (9,382.22 km) |
| South San Francisco to Ochtrup | 5,528.47 mi (8,897.21 km) |
| South San Francisco to Odenthal | 5,590.14 mi (8,996.46 km) |
| South San Francisco to Oelde | 5,573.83 mi (8,970.22 km) |
| South San Francisco to Oelsnitz | 5,755.46 mi (9,262.51 km) |
| South San Francisco to Oer-Erkenschwick | 5,560.65 mi (8,949.00 km) |
