| Alcanena to Oberkirch | 1,038.07 mi (1,670.62 km) |
| Alcanena to Obernburg am Main | 1,126.29 mi (1,812.59 km) |
| Alcanena to Obernkirchen | 1,224.10 mi (1,970.00 km) |
| Alcanena to Oberschleissheim | 1,171.24 mi (1,884.93 km) |
| Alcanena to Oberstdorf | 1,093.35 mi (1,759.58 km) |
| Alcanena to Obertraubling | 1,216.56 mi (1,957.87 km) |
| Alcanena to Obertshausen | 1,123.47 mi (1,808.05 km) |
| Alcanena to Oberursel | 1,119.44 mi (1,801.57 km) |
| Alcanena to Ochsenfurt | 1,154.61 mi (1,858.17 km) |
| Alcanena to Ochsenhausen | 1,098.37 mi (1,767.65 km) |
| Alcanena to Ochtrup | 1,159.91 mi (1,866.70 km) |
| Alcanena to Odenthal | 1,103.68 mi (1,776.20 km) |
| Alcanena to Oelde | 1,173.35 mi (1,888.32 km) |
| Alcanena to Oelsnitz | 1,261.81 mi (2,030.69 km) |
| Alcanena to Oer-Erkenschwick | 1,135.61 mi (1,827.58 km) |
