| Adelphi to Oberkirch | 4,072.01 mi (6,553.26 km) |
| Adelphi to Obernburg am Main | 4,076.65 mi (6,560.73 km) |
| Adelphi to Obernkirchen | 4,006.02 mi (6,447.07 km) |
| Adelphi to Oberschleissheim | 4,223.84 mi (6,797.62 km) |
| Adelphi to Oberstdorf | 4,197.44 mi (6,755.12 km) |
| Adelphi to Obertraubling | 4,225.34 mi (6,800.03 km) |
| Adelphi to Obertshausen | 4,057.60 mi (6,530.08 km) |
| Adelphi to Oberursel | 4,043.33 mi (6,507.12 km) |
| Adelphi to Ochsenfurt | 4,119.58 mi (6,629.82 km) |
| Adelphi to Ochsenhausen | 4,163.00 mi (6,699.71 km) |
| Adelphi to Ochtrup | 3,932.77 mi (6,329.18 km) |
| Adelphi to Odenthal | 3,961.52 mi (6,375.45 km) |
| Adelphi to Oelde | 3,980.39 mi (6,405.82 km) |
| Adelphi to Oelsnitz | 4,179.62 mi (6,726.45 km) |
| Adelphi to Oer-Erkenschwick | 3,950.27 mi (6,357.35 km) |
