| Salcea to Octeville | 1,278.77 mi (2,057.99 km) |
| Salcea to Oignies | 1,071.47 mi (1,724.37 km) |
| Salcea to Oissel | 1,157.82 mi (1,863.34 km) |
| Salcea to Olivet | 1,131.93 mi (1,821.66 km) |
| Salcea to Ollioules | 1,039.79 mi (1,673.38 km) |
| Salcea to Olonne-sur-Mer | 1,318.77 mi (2,122.35 km) |
| Salcea to Oloron-Sainte-Marie | 1,336.63 mi (2,151.10 km) |
| Salcea to Onet Village | 1,158.53 mi (1,864.48 km) |
| Salcea to Onnaing | 1,044.73 mi (1,681.33 km) |
| Salcea to Orange | 1,061.05 mi (1,707.60 km) |
| Salcea to Orchies | 1,060.47 mi (1,706.66 km) |
| Salcea to Orleans | 1,131.16 mi (1,820.42 km) |
| Salcea to Orly | 1,102.29 mi (1,773.97 km) |
| Salcea to Ormesson-sur-Marne | 1,095.44 mi (1,762.94 km) |
| Salcea to Orsay | 1,111.90 mi (1,789.43 km) |
