| Siniscola to Octeville | 833.06 mi (1,340.69 km) |
| Siniscola to Oignies | 756.01 mi (1,216.68 km) |
| Siniscola to Oissel | 736.49 mi (1,185.27 km) |
| Siniscola to Olivet | 633.88 mi (1,020.13 km) |
| Siniscola to Ollioules | 265.75 mi (427.69 km) |
| Siniscola to Olonne-sur-Mer | 705.59 mi (1,135.54 km) |
| Siniscola to Oloron-Sainte-Marie | 559.59 mi (900.58 km) |
| Siniscola to Onet Village | 446.56 mi (718.66 km) |
| Siniscola to Onnaing | 738.99 mi (1,189.29 km) |
| Siniscola to Orange | 350.43 mi (563.96 km) |
| Siniscola to Orchies | 751.28 mi (1,209.07 km) |
| Siniscola to Orleans | 635.67 mi (1,023.01 km) |
| Siniscola to Orly | 668.22 mi (1,075.39 km) |
| Siniscola to Ormesson-sur-Marne | 666.82 mi (1,073.14 km) |
| Siniscola to Orsay | 671.08 mi (1,080.01 km) |
