| Amadora to Octeville | 840.38 mi (1,352.45 km) |
| Amadora to Oignies | 1,006.81 mi (1,620.31 km) |
| Amadora to Oissel | 892.78 mi (1,436.78 km) |
| Amadora to Olivet | 841.75 mi (1,354.67 km) |
| Amadora to Ollioules | 842.44 mi (1,355.78 km) |
| Amadora to Olonne-sur-Mer | 658.47 mi (1,059.70 km) |
| Amadora to Oloron-Sainte-Marie | 545.05 mi (877.17 km) |
| Amadora to Onet Village | 723.77 mi (1,164.79 km) |
| Amadora to Onnaing | 1,020.41 mi (1,642.19 km) |
| Amadora to Orange | 816.16 mi (1,313.49 km) |
| Amadora to Orchies | 1,014.38 mi (1,632.49 km) |
| Amadora to Orleans | 843.90 mi (1,358.13 km) |
| Amadora to Orly | 900.81 mi (1,449.72 km) |
| Amadora to Ormesson-sur-Marne | 907.52 mi (1,460.50 km) |
| Amadora to Orsay | 892.04 mi (1,435.60 km) |
