| Almada to Octeville | 842.09 mi (1,355.22 km) |
| Almada to Oignies | 1,007.75 mi (1,621.82 km) |
| Almada to Oissel | 893.80 mi (1,438.43 km) |
| Almada to Olivet | 842.18 mi (1,355.35 km) |
| Almada to Ollioules | 840.42 mi (1,352.53 km) |
| Almada to Olonne-sur-Mer | 659.39 mi (1,061.19 km) |
| Almada to Oloron-Sainte-Marie | 544.06 mi (875.58 km) |
| Almada to Onet Village | 722.69 mi (1,163.06 km) |
| Almada to Onnaing | 1,021.22 mi (1,643.50 km) |
| Almada to Orange | 814.66 mi (1,311.07 km) |
| Almada to Orchies | 1,015.28 mi (1,633.93 km) |
| Almada to Orleans | 844.33 mi (1,358.82 km) |
| Almada to Orly | 901.41 mi (1,450.67 km) |
| Almada to Ormesson-sur-Marne | 908.09 mi (1,461.43 km) |
| Almada to Orsay | 892.66 mi (1,436.60 km) |
