| Friendswood to Oberkirch | 5,272.26 mi (8,484.89 km) |
| Friendswood to Obernburg am Main | 5,269.30 mi (8,480.11 km) |
| Friendswood to Obernkirchen | 5,185.85 mi (8,345.81 km) |
| Friendswood to Oberschleissheim | 5,419.85 mi (8,722.41 km) |
| Friendswood to Oberstdorf | 5,399.09 mi (8,689.00 km) |
| Friendswood to Obertraubling | 5,417.03 mi (8,717.86 km) |
| Friendswood to Obertshausen | 5,249.65 mi (8,448.49 km) |
| Friendswood to Oberursel | 5,235.12 mi (8,425.11 km) |
| Friendswood to Ochsenfurt | 5,311.62 mi (8,548.23 km) |
| Friendswood to Ochsenhausen | 5,362.41 mi (8,629.97 km) |
| Friendswood to Ochtrup | 5,116.21 mi (8,233.74 km) |
| Friendswood to Odenthal | 5,151.43 mi (8,290.43 km) |
| Friendswood to Oelde | 5,164.33 mi (8,311.19 km) |
| Friendswood to Oelsnitz | 5,364.06 mi (8,632.63 km) |
| Friendswood to Oer-Erkenschwick | 5,136.74 mi (8,266.78 km) |
