| Klosterneuburg to Oignies | 616.68 mi (992.45 km) |
| Klosterneuburg to Oissel | 695.10 mi (1,118.66 km) |
| Klosterneuburg to Olivet | 665.12 mi (1,070.41 km) |
| Klosterneuburg to Ollioules | 617.51 mi (993.79 km) |
| Klosterneuburg to Olonne-sur-Mer | 852.41 mi (1,371.83 km) |
| Klosterneuburg to Oloron-Sainte-Marie | 886.61 mi (1,426.86 km) |
| Klosterneuburg to Onet Village | 707.70 mi (1,138.93 km) |
| Klosterneuburg to Onnaing | 589.52 mi (948.74 km) |
| Klosterneuburg to Orange | 619.95 mi (997.71 km) |
| Klosterneuburg to Orchies | 605.86 mi (975.04 km) |
| Klosterneuburg to Orleans | 664.37 mi (1,069.20 km) |
| Klosterneuburg to Orly | 637.01 mi (1,025.16 km) |
| Klosterneuburg to Ormesson-sur-Marne | 630.27 mi (1,014.32 km) |
| Klosterneuburg to Orsay | 646.50 mi (1,040.45 km) |
| Klosterneuburg to Orthez | 884.09 mi (1,422.81 km) |
