| Prerov to Oignies | 645.36 mi (1,038.60 km) |
| Prerov to Oissel | 734.22 mi (1,181.61 km) |
| Prerov to Olivet | 716.84 mi (1,153.64 km) |
| Prerov to Ollioules | 703.87 mi (1,132.77 km) |
| Prerov to Olonne-sur-Mer | 908.75 mi (1,462.48 km) |
| Prerov to Oloron-Sainte-Marie | 960.80 mi (1,546.25 km) |
| Prerov to Onet Village | 782.67 mi (1,259.58 km) |
| Prerov to Onnaing | 618.69 mi (995.69 km) |
| Prerov to Orange | 700.43 mi (1,127.24 km) |
| Prerov to Orchies | 634.34 mi (1,020.88 km) |
| Prerov to Orleans | 715.79 mi (1,151.96 km) |
| Prerov to Orly | 681.84 mi (1,097.32 km) |
| Prerov to Ormesson-sur-Marne | 674.83 mi (1,086.03 km) |
| Prerov to Orsay | 691.61 mi (1,113.04 km) |
| Prerov to Orthez | 956.86 mi (1,539.91 km) |
