| Prerov to Oestrich-Winkel | 423.50 mi (681.56 km) |
| Prerov to Offenburg | 436.84 mi (703.02 km) |
| Prerov to Oftersheim | 398.38 mi (641.13 km) |
| Prerov to Ohrdruf | 312.11 mi (502.29 km) |
| Prerov to Ohringen | 358.31 mi (576.64 km) |
| Prerov to Olbernhau | 200.87 mi (323.26 km) |
| Prerov to Olching | 292.11 mi (470.10 km) |
| Prerov to Oldenburg | 472.93 mi (761.10 km) |
| Prerov to Oldenburg in Holstein | 436.10 mi (701.84 km) |
| Prerov to Olfen | 468.01 mi (753.19 km) |
| Prerov to Olpe | 438.17 mi (705.16 km) |
| Prerov to Olsberg | 415.74 mi (669.07 km) |
| Prerov to Oranienburg | 292.09 mi (470.07 km) |
| Prerov to Ortenberg | 378.54 mi (609.20 km) |
| Prerov to Oschatz | 229.90 mi (369.98 km) |
