| Palos de la Frontera to Oberkirch | 1,084.86 mi (1,745.92 km) |
| Palos de la Frontera to Obernburg am Main | 1,180.17 mi (1,899.30 km) |
| Palos de la Frontera to Obernkirchen | 1,296.51 mi (2,086.53 km) |
| Palos de la Frontera to Oberschleissheim | 1,201.83 mi (1,934.15 km) |
| Palos de la Frontera to Oberstdorf | 1,120.24 mi (1,802.85 km) |
| Palos de la Frontera to Obertraubling | 1,251.70 mi (2,014.42 km) |
| Palos de la Frontera to Obertshausen | 1,180.52 mi (1,899.86 km) |
| Palos de la Frontera to Oberursel | 1,178.69 mi (1,896.92 km) |
| Palos de la Frontera to Ochsenfurt | 1,203.19 mi (1,936.35 km) |
| Palos de la Frontera to Ochsenhausen | 1,133.02 mi (1,823.42 km) |
| Palos de la Frontera to Ochtrup | 1,239.80 mi (1,995.26 km) |
| Palos de la Frontera to Odenthal | 1,175.78 mi (1,892.24 km) |
| Palos de la Frontera to Oelde | 1,246.67 mi (2,006.32 km) |
| Palos de la Frontera to Oelsnitz | 1,309.26 mi (2,107.05 km) |
| Palos de la Frontera to Oer-Erkenschwick | 1,211.45 mi (1,949.64 km) |
