| Vienna to Oignies | 621.29 mi (999.87 km) |
| Vienna to Oissel | 698.98 mi (1,124.90 km) |
| Vienna to Olivet | 668.04 mi (1,075.10 km) |
| Vienna to Ollioules | 616.29 mi (991.82 km) |
| Vienna to Olonne-sur-Mer | 854.84 mi (1,375.73 km) |
| Vienna to Oloron-Sainte-Marie | 887.14 mi (1,427.71 km) |
| Vienna to Onet Village | 708.19 mi (1,139.72 km) |
| Vienna to Onnaing | 594.12 mi (956.15 km) |
| Vienna to Orange | 619.72 mi (997.34 km) |
| Vienna to Orchies | 610.49 mi (982.49 km) |
| Vienna to Orleans | 667.31 mi (1,073.93 km) |
| Vienna to Orly | 640.50 mi (1,030.78 km) |
| Vienna to Ormesson-sur-Marne | 633.78 mi (1,019.97 km) |
| Vienna to Orsay | 649.97 mi (1,046.02 km) |
| Vienna to Orthez | 884.80 mi (1,423.95 km) |
