| College to Oberkirch | 4,495.10 mi (7,234.17 km) |
| College to Obernburg am Main | 4,415.42 mi (7,105.93 km) |
| College to Obernkirchen | 4,250.54 mi (6,840.58 km) |
| College to Oberschleissheim | 4,542.75 mi (7,310.85 km) |
| College to Oberstdorf | 4,589.92 mi (7,386.76 km) |
| College to Obertraubling | 4,498.39 mi (7,239.46 km) |
| College to Obertshausen | 4,397.48 mi (7,077.06 km) |
| College to Oberursel | 4,386.06 mi (7,058.69 km) |
| College to Ochsenfurt | 4,435.82 mi (7,138.76 km) |
| College to Ochsenhausen | 4,542.16 mi (7,309.90 km) |
| College to Ochtrup | 4,238.60 mi (6,821.37 km) |
| College to Odenthal | 4,317.26 mi (6,947.96 km) |
| College to Oelde | 4,271.98 mi (6,875.09 km) |
| College to Oelsnitz | 4,399.45 mi (7,080.23 km) |
| College to Oer-Erkenschwick | 4,277.24 mi (6,883.55 km) |
