| Umag to Oignies | 597.60 mi (961.74 km) |
| Umag to Oissel | 639.89 mi (1,029.80 km) |
| Umag to Olivet | 575.33 mi (925.91 km) |
| Umag to Ollioules | 410.92 mi (661.31 km) |
| Umag to Olonne-sur-Mer | 736.81 mi (1,185.79 km) |
| Umag to Oloron-Sainte-Marie | 714.15 mi (1,149.32 km) |
| Umag to Onet Village | 539.23 mi (867.81 km) |
| Umag to Onnaing | 572.09 mi (920.69 km) |
| Umag to Orange | 436.02 mi (701.70 km) |
| Umag to Orchies | 588.45 mi (947.01 km) |
| Umag to Orleans | 575.54 mi (926.25 km) |
| Umag to Orly | 570.41 mi (917.99 km) |
| Umag to Ormesson-sur-Marne | 565.15 mi (909.53 km) |
| Umag to Orsay | 578.22 mi (930.55 km) |
| Umag to Orthez | 716.27 mi (1,152.72 km) |
