| Sitges to Octeville | 603.34 mi (970.98 km) |
| Sitges to Oignies | 640.64 mi (1,031.00 km) |
| Sitges to Oissel | 561.27 mi (903.28 km) |
| Sitges to Olivet | 458.11 mi (737.26 km) |
| Sitges to Ollioules | 245.25 mi (394.69 km) |
| Sitges to Olonne-sur-Mer | 407.24 mi (655.40 km) |
| Sitges to Oloron-Sainte-Marie | 183.19 mi (294.82 km) |
| Sitges to Onet Village | 220.05 mi (354.13 km) |
| Sitges to Onnaing | 638.29 mi (1,027.24 km) |
| Sitges to Orange | 252.09 mi (405.71 km) |
| Sitges to Orchies | 642.19 mi (1,033.51 km) |
| Sitges to Orleans | 460.78 mi (741.56 km) |
| Sitges to Orly | 519.68 mi (836.35 km) |
| Sitges to Ormesson-sur-Marne | 523.01 mi (841.70 km) |
| Sitges to Orsay | 516.06 mi (830.53 km) |
