| Salamanca to Oberkirch | 851.36 mi (1,370.13 km) |
| Salamanca to Obernburg am Main | 941.39 mi (1,515.03 km) |
| Salamanca to Obernkirchen | 1,045.70 mi (1,682.89 km) |
| Salamanca to Oberschleissheim | 982.49 mi (1,581.16 km) |
| Salamanca to Oberstdorf | 904.29 mi (1,455.32 km) |
| Salamanca to Obertraubling | 1,028.31 mi (1,654.91 km) |
| Salamanca to Obertshausen | 939.42 mi (1,511.86 km) |
| Salamanca to Oberursel | 936.04 mi (1,506.41 km) |
| Salamanca to Ochsenfurt | 968.51 mi (1,558.67 km) |
| Salamanca to Ochsenhausen | 909.92 mi (1,464.37 km) |
| Salamanca to Ochtrup | 984.76 mi (1,584.81 km) |
| Salamanca to Odenthal | 924.85 mi (1,488.40 km) |
| Salamanca to Oelde | 995.21 mi (1,601.64 km) |
| Salamanca to Oelsnitz | 1,075.66 mi (1,731.10 km) |
| Salamanca to Oer-Erkenschwick | 958.49 mi (1,542.53 km) |
