| Prestatyn to Oberkirch | 599.02 mi (964.04 km) |
| Prestatyn to Obernburg am Main | 589.13 mi (948.11 km) |
| Prestatyn to Obernkirchen | 527.58 mi (849.07 km) |
| Prestatyn to Oberschleissheim | 740.18 mi (1,191.21 km) |
| Prestatyn to Oberstdorf | 726.83 mi (1,169.73 km) |
| Prestatyn to Obertraubling | 737.26 mi (1,186.50 km) |
| Prestatyn to Obertshausen | 569.62 mi (916.71 km) |
| Prestatyn to Oberursel | 555.17 mi (893.46 km) |
| Prestatyn to Ochsenfurt | 631.64 mi (1,016.52 km) |
| Prestatyn to Ochsenhausen | 686.47 mi (1,104.77 km) |
| Prestatyn to Ochtrup | 449.26 mi (723.02 km) |
| Prestatyn to Odenthal | 472.64 mi (760.64 km) |
| Prestatyn to Oelde | 495.43 mi (797.32 km) |
| Prestatyn to Oelsnitz | 692.49 mi (1,114.45 km) |
| Prestatyn to Oer-Erkenschwick | 462.78 mi (744.77 km) |
