| Morgantown to Oberkirch | 4,165.84 mi (6,704.27 km) |
| Morgantown to Obernburg am Main | 4,166.37 mi (6,705.12 km) |
| Morgantown to Obernkirchen | 4,089.50 mi (6,581.42 km) |
| Morgantown to Oberschleissheim | 4,315.43 mi (6,945.01 km) |
| Morgantown to Oberstdorf | 4,292.14 mi (6,907.54 km) |
| Morgantown to Obertraubling | 4,314.68 mi (6,943.81 km) |
| Morgantown to Obertshausen | 4,147.00 mi (6,673.95 km) |
| Morgantown to Oberursel | 4,132.59 mi (6,650.75 km) |
| Morgantown to Ochsenfurt | 4,209.02 mi (6,773.77 km) |
| Morgantown to Ochsenhausen | 4,256.41 mi (6,850.03 km) |
| Morgantown to Ochtrup | 4,017.84 mi (6,466.09 km) |
| Morgantown to Odenthal | 4,049.76 mi (6,517.46 km) |
| Morgantown to Oelde | 4,065.75 mi (6,543.19 km) |
| Morgantown to Oelsnitz | 4,265.41 mi (6,864.51 km) |
| Morgantown to Oer-Erkenschwick | 4,036.80 mi (6,496.61 km) |
