| Guillena to Oberkirch | 1,039.36 mi (1,672.68 km) |
| Guillena to Obernburg am Main | 1,135.44 mi (1,827.31 km) |
| Guillena to Obernkirchen | 1,254.42 mi (2,018.79 km) |
| Guillena to Oberschleissheim | 1,154.24 mi (1,857.57 km) |
| Guillena to Oberstdorf | 1,072.40 mi (1,725.86 km) |
| Guillena to Obertraubling | 1,204.53 mi (1,938.51 km) |
| Guillena to Obertshausen | 1,136.23 mi (1,828.59 km) |
| Guillena to Oberursel | 1,134.73 mi (1,826.18 km) |
| Guillena to Ochsenfurt | 1,157.70 mi (1,863.13 km) |
| Guillena to Ochsenhausen | 1,085.97 mi (1,747.70 km) |
| Guillena to Ochtrup | 1,199.15 mi (1,929.85 km) |
| Guillena to Odenthal | 1,133.89 mi (1,824.81 km) |
| Guillena to Oelde | 1,204.83 mi (1,938.99 km) |
| Guillena to Oelsnitz | 1,263.46 mi (2,033.34 km) |
| Guillena to Oer-Erkenschwick | 1,170.13 mi (1,883.14 km) |
