| Concordia Sagittaria to Octeville | 723.37 mi (1,164.15 km) |
| Concordia Sagittaria to Oignies | 558.06 mi (898.12 km) |
| Concordia Sagittaria to Oissel | 600.53 mi (966.46 km) |
| Concordia Sagittaria to Olivet | 537.10 mi (864.38 km) |
| Concordia Sagittaria to Ollioules | 390.00 mi (627.64 km) |
| Concordia Sagittaria to Olonne-sur-Mer | 700.92 mi (1,128.03 km) |
| Concordia Sagittaria to Oloron-Sainte-Marie | 685.84 mi (1,103.76 km) |
| Concordia Sagittaria to Onet Village | 509.41 mi (819.81 km) |
| Concordia Sagittaria to Onnaing | 532.61 mi (857.15 km) |
| Concordia Sagittaria to Orange | 408.72 mi (657.77 km) |
| Concordia Sagittaria to Orchies | 548.94 mi (883.44 km) |
| Concordia Sagittaria to Orleans | 537.26 mi (864.64 km) |
| Concordia Sagittaria to Orly | 531.23 mi (854.93 km) |
| Concordia Sagittaria to Ormesson-sur-Marne | 525.92 mi (846.38 km) |
| Concordia Sagittaria to Orsay | 539.10 mi (867.60 km) |
