| Roosevelt to Oberkirch | 3,859.53 mi (6,211.32 km) |
| Roosevelt to Obernburg am Main | 3,864.93 mi (6,220.01 km) |
| Roosevelt to Obernkirchen | 3,795.81 mi (6,108.77 km) |
| Roosevelt to Oberschleissheim | 4,011.73 mi (6,456.26 km) |
| Roosevelt to Oberstdorf | 3,984.81 mi (6,412.93 km) |
| Roosevelt to Obertraubling | 4,013.67 mi (6,459.37 km) |
| Roosevelt to Obertshausen | 3,845.96 mi (6,189.47 km) |
| Roosevelt to Oberursel | 3,831.72 mi (6,166.56 km) |
| Roosevelt to Ochsenfurt | 3,907.91 mi (6,289.18 km) |
| Roosevelt to Ochsenhausen | 3,950.58 mi (6,357.85 km) |
| Roosevelt to Ochtrup | 3,722.16 mi (5,990.24 km) |
| Roosevelt to Odenthal | 3,750.15 mi (6,035.28 km) |
| Roosevelt to Oelde | 3,769.70 mi (6,066.75 km) |
| Roosevelt to Oelsnitz | 3,968.77 mi (6,387.11 km) |
| Roosevelt to Oer-Erkenschwick | 3,739.30 mi (6,017.82 km) |
