| Huntington Beach to Oberkirch | 5,856.73 mi (9,425.49 km) |
| Huntington Beach to Obernburg am Main | 5,821.83 mi (9,369.34 km) |
| Huntington Beach to Obernkirchen | 5,696.37 mi (9,167.42 km) |
| Huntington Beach to Oberschleissheim | 5,976.77 mi (9,618.68 km) |
| Huntington Beach to Oberstdorf | 5,982.24 mi (9,627.49 km) |
| Huntington Beach to Obertraubling | 5,956.31 mi (9,585.75 km) |
| Huntington Beach to Obertshausen | 5,801.03 mi (9,335.85 km) |
| Huntington Beach to Oberursel | 5,786.41 mi (9,312.33 km) |
| Huntington Beach to Ochsenfurt | 5,859.03 mi (9,429.19 km) |
| Huntington Beach to Ochsenhausen | 5,937.60 mi (9,555.64 km) |
| Huntington Beach to Ochtrup | 5,644.14 mi (9,083.36 km) |
| Huntington Beach to Odenthal | 5,700.85 mi (9,174.63 km) |
| Huntington Beach to Oelde | 5,690.79 mi (9,158.44 km) |
| Huntington Beach to Oelsnitz | 5,879.07 mi (9,461.46 km) |
| Huntington Beach to Oer-Erkenschwick | 5,674.21 mi (9,131.76 km) |
