| Barbastro to Octeville | 531.30 mi (855.05 km) |
| Barbastro to Oignies | 598.43 mi (963.09 km) |
| Barbastro to Oissel | 506.91 mi (815.80 km) |
| Barbastro to Olivet | 411.87 mi (662.84 km) |
| Barbastro to Ollioules | 300.75 mi (484.01 km) |
| Barbastro to Olonne-sur-Mer | 324.77 mi (522.67 km) |
| Barbastro to Oloron-Sainte-Marie | 88.27 mi (142.06 km) |
| Barbastro to Onet Village | 203.32 mi (327.21 km) |
| Barbastro to Onnaing | 600.27 mi (966.04 km) |
| Barbastro to Orange | 277.32 mi (446.30 km) |
| Barbastro to Orchies | 601.63 mi (968.23 km) |
| Barbastro to Orleans | 414.56 mi (667.17 km) |
| Barbastro to Orly | 476.27 mi (766.49 km) |
| Barbastro to Ormesson-sur-Marne | 480.74 mi (773.68 km) |
| Barbastro to Orsay | 471.00 mi (758.00 km) |
