| Ashburn to Oberkirch | 4,091.78 mi (6,585.08 km) |
| Ashburn to Obernburg am Main | 4,095.85 mi (6,591.63 km) |
| Ashburn to Obernkirchen | 4,024.33 mi (6,476.54 km) |
| Ashburn to Oberschleissheim | 4,243.31 mi (6,828.95 km) |
| Ashburn to Oberstdorf | 4,217.34 mi (6,787.16 km) |
| Ashburn to Obertraubling | 4,244.50 mi (6,830.86 km) |
| Ashburn to Obertshausen | 4,076.75 mi (6,560.90 km) |
| Ashburn to Oberursel | 4,062.46 mi (6,537.90 km) |
| Ashburn to Ochsenfurt | 4,138.74 mi (6,660.66 km) |
| Ashburn to Ochsenhausen | 4,182.72 mi (6,731.44 km) |
| Ashburn to Ochtrup | 3,951.29 mi (6,358.99 km) |
| Ashburn to Odenthal | 3,980.50 mi (6,406.00 km) |
| Ashburn to Oelde | 3,998.97 mi (6,435.71 km) |
| Ashburn to Oelsnitz | 4,198.27 mi (6,756.47 km) |
| Ashburn to Oer-Erkenschwick | 3,969.01 mi (6,387.50 km) |
