| Senigallia to Octeville | 812.42 mi (1,307.46 km) |
| Senigallia to Oignies | 669.12 mi (1,076.84 km) |
| Senigallia to Oissel | 694.09 mi (1,117.03 km) |
| Senigallia to Olivet | 615.26 mi (990.16 km) |
| Senigallia to Ollioules | 371.89 mi (598.49 km) |
| Senigallia to Olonne-sur-Mer | 755.09 mi (1,215.21 km) |
| Senigallia to Oloron-Sainte-Marie | 693.54 mi (1,116.15 km) |
| Senigallia to Onet Village | 529.26 mi (851.76 km) |
| Senigallia to Onnaing | 645.37 mi (1,038.62 km) |
| Senigallia to Orange | 419.29 mi (674.78 km) |
| Senigallia to Orchies | 661.01 mi (1,063.79 km) |
| Senigallia to Orleans | 615.97 mi (991.31 km) |
| Senigallia to Orly | 622.42 mi (1,001.69 km) |
| Senigallia to Ormesson-sur-Marne | 618.15 mi (994.82 km) |
| Senigallia to Orsay | 629.01 mi (1,012.30 km) |
