| Enns to Oignies | 539.14 mi (867.65 km) |
| Enns to Oissel | 613.47 mi (987.28 km) |
| Enns to Olivet | 580.75 mi (934.63 km) |
| Enns to Ollioules | 543.98 mi (875.45 km) |
| Enns to Olonne-sur-Mer | 767.54 mi (1,235.23 km) |
| Enns to Oloron-Sainte-Marie | 804.37 mi (1,294.50 km) |
| Enns to Onet Village | 625.67 mi (1,006.91 km) |
| Enns to Onnaing | 511.94 mi (823.89 km) |
| Enns to Orange | 540.90 mi (870.50 km) |
| Enns to Orchies | 528.46 mi (850.48 km) |
| Enns to Orleans | 580.04 mi (933.49 km) |
| Enns to Orly | 553.98 mi (891.55 km) |
| Enns to Ormesson-sur-Marne | 547.33 mi (880.84 km) |
| Enns to Orsay | 563.40 mi (906.70 km) |
| Enns to Orthez | 801.33 mi (1,289.61 km) |
