| Tordesillas to Oberkirch | 800.97 mi (1,289.03 km) |
| Tordesillas to Obernburg am Main | 890.84 mi (1,433.67 km) |
| Tordesillas to Obernkirchen | 995.42 mi (1,601.98 km) |
| Tordesillas to Oberschleissheim | 932.83 mi (1,501.24 km) |
| Tordesillas to Oberstdorf | 854.96 mi (1,375.93 km) |
| Tordesillas to Obertraubling | 978.35 mi (1,574.50 km) |
| Tordesillas to Obertshausen | 888.85 mi (1,430.47 km) |
| Tordesillas to Oberursel | 885.47 mi (1,425.02 km) |
| Tordesillas to Ochsenfurt | 918.05 mi (1,477.45 km) |
| Tordesillas to Ochsenhausen | 860.05 mi (1,384.12 km) |
| Tordesillas to Ochtrup | 934.87 mi (1,504.53 km) |
| Tordesillas to Odenthal | 874.56 mi (1,407.47 km) |
| Tordesillas to Oelde | 944.98 mi (1,520.79 km) |
| Tordesillas to Oelsnitz | 1,025.20 mi (1,649.90 km) |
| Tordesillas to Oer-Erkenschwick | 908.37 mi (1,461.88 km) |
