| Santona to Oberkirch | 655.25 mi (1,054.52 km) |
| Santona to Obernburg am Main | 741.80 mi (1,193.81 km) |
| Santona to Obernkirchen | 841.33 mi (1,353.99 km) |
| Santona to Oberschleissheim | 794.01 mi (1,277.83 km) |
| Santona to Oberstdorf | 719.09 mi (1,157.26 km) |
| Santona to Obertraubling | 836.82 mi (1,346.74 km) |
| Santona to Obertshausen | 738.73 mi (1,188.87 km) |
| Santona to Oberursel | 734.65 mi (1,182.30 km) |
| Santona to Ochsenfurt | 770.90 mi (1,240.64 km) |
| Santona to Ochsenhausen | 719.77 mi (1,158.36 km) |
| Santona to Ochtrup | 779.79 mi (1,254.96 km) |
| Santona to Odenthal | 720.57 mi (1,159.65 km) |
| Santona to Oelde | 790.75 mi (1,272.58 km) |
| Santona to Oelsnitz | 878.05 mi (1,413.09 km) |
| Santona to Oer-Erkenschwick | 753.77 mi (1,213.07 km) |
