| Bartlett to Oberkirch | 4,769.26 mi (7,675.39 km) |
| Bartlett to Obernburg am Main | 4,765.38 mi (7,669.14 km) |
| Bartlett to Obernkirchen | 4,681.27 mi (7,533.78 km) |
| Bartlett to Oberschleissheim | 4,916.23 mi (7,911.91 km) |
| Bartlett to Oberstdorf | 4,896.26 mi (7,879.77 km) |
| Bartlett to Obertraubling | 4,912.99 mi (7,906.69 km) |
| Bartlett to Obertshausen | 4,745.68 mi (7,637.44 km) |
| Bartlett to Oberursel | 4,731.14 mi (7,614.03 km) |
| Bartlett to Ochsenfurt | 4,807.64 mi (7,737.15 km) |
| Bartlett to Ochsenhausen | 4,859.25 mi (7,820.20 km) |
| Bartlett to Ochtrup | 4,611.75 mi (7,421.89 km) |
| Bartlett to Odenthal | 4,647.33 mi (7,479.15 km) |
| Bartlett to Oelde | 4,659.88 mi (7,499.36 km) |
| Bartlett to Oelsnitz | 4,859.60 mi (7,820.78 km) |
| Bartlett to Oer-Erkenschwick | 4,632.41 mi (7,455.15 km) |
