| San Martin de Valdeiglesias to Oberkirch | 833.39 mi (1,341.22 km) |
| San Martin de Valdeiglesias to Obernburg am Main | 927.28 mi (1,492.31 km) |
| San Martin de Valdeiglesias to Obernkirchen | 1,041.67 mi (1,676.40 km) |
| San Martin de Valdeiglesias to Oberschleissheim | 956.25 mi (1,538.94 km) |
| San Martin de Valdeiglesias to Oberstdorf | 876.03 mi (1,409.83 km) |
| San Martin de Valdeiglesias to Obertraubling | 1,004.44 mi (1,616.49 km) |
| San Martin de Valdeiglesias to Obertshausen | 927.04 mi (1,491.92 km) |
| San Martin de Valdeiglesias to Oberursel | 924.86 mi (1,488.42 km) |
| San Martin de Valdeiglesias to Ochsenfurt | 951.55 mi (1,531.37 km) |
| San Martin de Valdeiglesias to Ochsenhausen | 885.61 mi (1,425.26 km) |
| San Martin de Valdeiglesias to Ochtrup | 985.15 mi (1,585.44 km) |
| San Martin de Valdeiglesias to Odenthal | 920.93 mi (1,482.09 km) |
| San Martin de Valdeiglesias to Oelde | 991.81 mi (1,596.17 km) |
| San Martin de Valdeiglesias to Oelsnitz | 1,058.13 mi (1,702.89 km) |
| San Martin de Valdeiglesias to Oer-Erkenschwick | 956.62 mi (1,539.53 km) |
