| Vila Real de Santo Antonio to Oberkirch | 1,104.98 mi (1,778.30 km) |
| Vila Real de Santo Antonio to Obernburg am Main | 1,199.59 mi (1,930.56 km) |
| Vila Real de Santo Antonio to Obernkirchen | 1,313.72 mi (2,114.23 km) |
| Vila Real de Santo Antonio to Oberschleissheim | 1,223.83 mi (1,969.57 km) |
| Vila Real de Santo Antonio to Oberstdorf | 1,142.53 mi (1,838.72 km) |
| Vila Real de Santo Antonio to Obertraubling | 1,273.29 mi (2,049.17 km) |
| Vila Real de Santo Antonio to Obertshausen | 1,199.56 mi (1,930.50 km) |
| Vila Real de Santo Antonio to Oberursel | 1,197.46 mi (1,927.13 km) |
| Vila Real de Santo Antonio to Ochsenfurt | 1,223.26 mi (1,968.64 km) |
| Vila Real de Santo Antonio to Ochsenhausen | 1,154.53 mi (1,858.04 km) |
| Vila Real de Santo Antonio to Ochtrup | 1,255.92 mi (2,021.21 km) |
| Vila Real de Santo Antonio to Odenthal | 1,192.90 mi (1,919.78 km) |
| Vila Real de Santo Antonio to Oelde | 1,263.71 mi (2,033.74 km) |
| Vila Real de Santo Antonio to Oelsnitz | 1,329.57 mi (2,139.73 km) |
| Vila Real de Santo Antonio to Oer-Erkenschwick | 1,228.10 mi (1,976.44 km) |
