| Prestatyn to Oerlinghausen | 514.08 mi (827.33 km) |
| Prestatyn to Oestrich-Winkel | 539.43 mi (868.13 km) |
| Prestatyn to Offenburg | 596.48 mi (959.94 km) |
| Prestatyn to Oftersheim | 584.26 mi (940.28 km) |
| Prestatyn to Ohrdruf | 623.55 mi (1,003.51 km) |
| Prestatyn to Ohringen | 625.44 mi (1,006.55 km) |
| Prestatyn to Olbernhau | 733.55 mi (1,180.54 km) |
| Prestatyn to Olching | 732.60 mi (1,179.01 km) |
| Prestatyn to Oldenburg | 480.11 mi (772.67 km) |
| Prestatyn to Oldenburg in Holstein | 585.65 mi (942.52 km) |
| Prestatyn to Olfen | 466.54 mi (750.82 km) |
| Prestatyn to Olpe | 501.69 mi (807.39 km) |
| Prestatyn to Olsberg | 519.49 mi (836.04 km) |
| Prestatyn to Oranienburg | 690.88 mi (1,111.87 km) |
| Prestatyn to Ortenberg | 569.30 mi (916.20 km) |
