| Santa Monica to Oberkirch | 5,852.35 mi (9,418.45 km) |
| Santa Monica to Obernburg am Main | 5,816.60 mi (9,360.91 km) |
| Santa Monica to Obernkirchen | 5,690.14 mi (9,157.40 km) |
| Santa Monica to Oberschleissheim | 5,971.43 mi (9,610.09 km) |
| Santa Monica to Oberstdorf | 5,977.64 mi (9,620.09 km) |
| Santa Monica to Obertraubling | 5,950.50 mi (9,576.40 km) |
| Santa Monica to Obertshausen | 5,795.79 mi (9,327.43 km) |
| Santa Monica to Oberursel | 5,781.20 mi (9,303.94 km) |
| Santa Monica to Ochsenfurt | 5,853.59 mi (9,420.45 km) |
| Santa Monica to Ochsenhausen | 5,932.84 mi (9,547.98 km) |
| Santa Monica to Ochtrup | 5,638.48 mi (9,074.26 km) |
| Santa Monica to Odenthal | 5,695.71 mi (9,166.35 km) |
| Santa Monica to Oelde | 5,685.02 mi (9,149.15 km) |
| Santa Monica to Oelsnitz | 5,872.70 mi (9,451.20 km) |
| Santa Monica to Oer-Erkenschwick | 5,668.78 mi (9,123.01 km) |
