| Siran to Octeville | 2,069.93 mi (3,331.23 km) |
| Siran to Oignies | 1,870.61 mi (3,010.46 km) |
| Siran to Oissel | 1,946.22 mi (3,132.14 km) |
| Siran to Olivet | 1,903.40 mi (3,063.22 km) |
| Siran to Ollioules | 1,718.41 mi (2,765.52 km) |
| Siran to Olonne-sur-Mer | 2,076.35 mi (3,341.57 km) |
| Siran to Oloron-Sainte-Marie | 2,041.18 mi (3,284.97 km) |
| Siran to Onet Village | 1,873.93 mi (3,015.80 km) |
| Siran to Onnaing | 1,843.47 mi (2,966.77 km) |
| Siran to Orange | 1,765.46 mi (2,841.23 km) |
| Siran to Orchies | 1,859.76 mi (2,993.00 km) |
| Siran to Orleans | 1,903.12 mi (3,062.77 km) |
| Siran to Orly | 1,884.31 mi (3,032.50 km) |
| Siran to Ormesson-sur-Marne | 1,877.92 mi (3,022.23 km) |
| Siran to Orsay | 1,893.41 mi (3,047.14 km) |
