| Cangas de Narcea to Oberkirch | 793.42 mi (1,276.89 km) |
| Cangas de Narcea to Obernburg am Main | 873.95 mi (1,406.49 km) |
| Cangas de Narcea to Obernkirchen | 957.91 mi (1,541.61 km) |
| Cangas de Narcea to Oberschleissheim | 938.54 mi (1,510.43 km) |
| Cangas de Narcea to Oberstdorf | 866.25 mi (1,394.09 km) |
| Cangas de Narcea to Obertraubling | 978.64 mi (1,574.96 km) |
| Cangas de Narcea to Obertshausen | 868.72 mi (1,398.07 km) |
| Cangas de Narcea to Oberursel | 863.10 mi (1,389.02 km) |
| Cangas de Narcea to Ochsenfurt | 906.08 mi (1,458.20 km) |
| Cangas de Narcea to Ochsenhausen | 863.46 mi (1,389.60 km) |
| Cangas de Narcea to Ochtrup | 890.17 mi (1,432.60 km) |
| Cangas de Narcea to Odenthal | 838.81 mi (1,349.93 km) |
| Cangas de Narcea to Oelde | 907.06 mi (1,459.78 km) |
| Cangas de Narcea to Oelsnitz | 1,012.53 mi (1,629.52 km) |
| Cangas de Narcea to Oer-Erkenschwick | 868.22 mi (1,397.27 km) |
