| Aveiro to Octeville | 708.35 mi (1,139.97 km) |
| Aveiro to Oignies | 880.60 mi (1,417.19 km) |
| Aveiro to Oissel | 765.92 mi (1,232.63 km) |
| Aveiro to Olivet | 721.45 mi (1,161.06 km) |
| Aveiro to Ollioules | 764.47 mi (1,230.29 km) |
| Aveiro to Olonne-sur-Mer | 533.24 mi (858.17 km) |
| Aveiro to Oloron-Sainte-Marie | 449.57 mi (723.51 km) |
| Aveiro to Onet Village | 627.43 mi (1,009.75 km) |
| Aveiro to Onnaing | 895.41 mi (1,441.02 km) |
| Aveiro to Orange | 727.31 mi (1,170.49 km) |
| Aveiro to Orchies | 888.57 mi (1,430.01 km) |
| Aveiro to Orleans | 723.46 mi (1,164.30 km) |
| Aveiro to Orly | 778.39 mi (1,252.69 km) |
| Aveiro to Ormesson-sur-Marne | 785.26 mi (1,263.75 km) |
| Aveiro to Orsay | 769.32 mi (1,238.11 km) |
