| Slobozia to Octeville | 1,399.06 mi (2,251.57 km) |
| Slobozia to Oignies | 1,201.70 mi (1,933.95 km) |
| Slobozia to Oissel | 1,275.22 mi (2,052.27 km) |
| Slobozia to Olivet | 1,232.80 mi (1,984.00 km) |
| Slobozia to Ollioules | 1,073.58 mi (1,727.76 km) |
| Slobozia to Olonne-sur-Mer | 1,408.38 mi (2,266.57 km) |
| Slobozia to Oloron-Sainte-Marie | 1,389.50 mi (2,236.19 km) |
| Slobozia to Onet Village | 1,216.91 mi (1,958.43 km) |
| Slobozia to Onnaing | 1,174.51 mi (1,890.19 km) |
| Slobozia to Orange | 1,111.27 mi (1,788.42 km) |
| Slobozia to Orchies | 1,190.93 mi (1,916.62 km) |
| Slobozia to Orleans | 1,232.47 mi (1,983.46 km) |
| Slobozia to Orly | 1,213.11 mi (1,952.32 km) |
| Slobozia to Ormesson-sur-Marne | 1,206.73 mi (1,942.05 km) |
| Slobozia to Orsay | 1,222.22 mi (1,966.97 km) |
