| Gross-Enzersdorf to Oignies | 629.19 mi (1,012.58 km) |
| Gross-Enzersdorf to Oissel | 707.09 mi (1,137.95 km) |
| Gross-Enzersdorf to Olivet | 676.23 mi (1,088.29 km) |
| Gross-Enzersdorf to Ollioules | 623.05 mi (1,002.70 km) |
| Gross-Enzersdorf to Olonne-sur-Mer | 863.00 mi (1,388.87 km) |
| Gross-Enzersdorf to Oloron-Sainte-Marie | 894.81 mi (1,440.06 km) |
| Gross-Enzersdorf to Onet Village | 715.86 mi (1,152.06 km) |
| Gross-Enzersdorf to Onnaing | 602.02 mi (968.86 km) |
| Gross-Enzersdorf to Orange | 627.06 mi (1,009.15 km) |
| Gross-Enzersdorf to Orchies | 618.38 mi (995.18 km) |
| Gross-Enzersdorf to Orleans | 675.51 mi (1,087.12 km) |
| Gross-Enzersdorf to Orly | 648.66 mi (1,043.92 km) |
| Gross-Enzersdorf to Ormesson-sur-Marne | 641.95 mi (1,033.11 km) |
| Gross-Enzersdorf to Orsay | 658.14 mi (1,059.17 km) |
| Gross-Enzersdorf to Orthez | 892.54 mi (1,436.41 km) |
