| Vila Real to Oberkirch | 919.16 mi (1,479.25 km) |
| Vila Real to Obernburg am Main | 1,004.08 mi (1,615.91 km) |
| Vila Real to Obernkirchen | 1,095.53 mi (1,763.09 km) |
| Vila Real to Oberschleissheim | 1,058.13 mi (1,702.89 km) |
| Vila Real to Oberstdorf | 982.54 mi (1,581.25 km) |
| Vila Real to Obertraubling | 1,101.16 mi (1,772.15 km) |
| Vila Real to Obertshausen | 1,000.14 mi (1,609.57 km) |
| Vila Real to Oberursel | 995.37 mi (1,601.90 km) |
| Vila Real to Ochsenfurt | 1,034.20 mi (1,664.39 km) |
| Vila Real to Ochsenhausen | 984.04 mi (1,583.65 km) |
| Vila Real to Ochtrup | 1,029.59 mi (1,656.96 km) |
| Vila Real to Odenthal | 975.62 mi (1,570.12 km) |
| Vila Real to Oelde | 1,044.69 mi (1,681.27 km) |
| Vila Real to Oelsnitz | 1,141.24 mi (1,836.65 km) |
| Vila Real to Oer-Erkenschwick | 1,006.40 mi (1,619.64 km) |
