| Signa to Octeville | 724.84 mi (1,166.51 km) |
| Signa to Oignies | 598.12 mi (962.59 km) |
| Signa to Oissel | 610.33 mi (982.23 km) |
| Signa to Olivet | 524.52 mi (844.14 km) |
| Signa to Ollioules | 267.13 mi (429.90 km) |
| Signa to Olonne-sur-Mer | 654.50 mi (1,053.32 km) |
| Signa to Oloron-Sainte-Marie | 587.75 mi (945.89 km) |
| Signa to Onet Village | 423.97 mi (682.31 km) |
| Signa to Onnaing | 576.27 mi (927.41 km) |
| Signa to Orange | 313.73 mi (504.89 km) |
| Signa to Orchies | 591.02 mi (951.16 km) |
| Signa to Orleans | 525.49 mi (845.69 km) |
| Signa to Orly | 538.35 mi (866.40 km) |
| Signa to Ormesson-sur-Marne | 534.77 mi (860.62 km) |
| Signa to Orsay | 544.10 mi (875.64 km) |
