| Camp Springs to Oberkirch | 4,078.81 mi (6,564.21 km) |
| Camp Springs to Obernburg am Main | 4,083.81 mi (6,572.26 km) |
| Camp Springs to Obernkirchen | 4,013.71 mi (6,459.44 km) |
| Camp Springs to Oberschleissheim | 4,230.83 mi (6,808.86 km) |
| Camp Springs to Oberstdorf | 4,204.16 mi (6,765.93 km) |
| Camp Springs to Obertraubling | 4,232.52 mi (6,811.58 km) |
| Camp Springs to Obertshausen | 4,064.79 mi (6,541.65 km) |
| Camp Springs to Oberursel | 4,050.54 mi (6,518.71 km) |
| Camp Springs to Ochsenfurt | 4,126.76 mi (6,641.38 km) |
| Camp Springs to Ochsenhausen | 4,169.84 mi (6,710.71 km) |
| Camp Springs to Ochtrup | 3,940.33 mi (6,341.34 km) |
| Camp Springs to Odenthal | 3,968.82 mi (6,387.20 km) |
| Camp Springs to Oelde | 3,987.93 mi (6,417.95 km) |
| Camp Springs to Oelsnitz | 4,187.10 mi (6,738.49 km) |
| Camp Springs to Oer-Erkenschwick | 3,957.71 mi (6,369.32 km) |
