| Celorico de Basto to Octeville | 646.88 mi (1,041.05 km) |
| Celorico de Basto to Oignies | 818.75 mi (1,317.66 km) |
| Celorico de Basto to Oissel | 704.05 mi (1,133.05 km) |
| Celorico de Basto to Olivet | 660.50 mi (1,062.97 km) |
| Celorico de Basto to Ollioules | 717.52 mi (1,154.73 km) |
| Celorico de Basto to Olonne-sur-Mer | 471.58 mi (758.93 km) |
| Celorico de Basto to Oloron-Sainte-Marie | 397.90 mi (640.36 km) |
| Celorico de Basto to Onet Village | 574.09 mi (923.90 km) |
| Celorico de Basto to Onnaing | 833.66 mi (1,341.65 km) |
| Celorico de Basto to Orange | 676.30 mi (1,088.40 km) |
| Celorico de Basto to Orchies | 826.75 mi (1,330.53 km) |
| Celorico de Basto to Orleans | 662.48 mi (1,066.16 km) |
| Celorico de Basto to Orly | 717.01 mi (1,153.92 km) |
| Celorico de Basto to Ormesson-sur-Marne | 723.91 mi (1,165.02 km) |
| Celorico de Basto to Orsay | 707.91 mi (1,139.27 km) |
