| Odivelas to Octeville | 835.60 mi (1,344.78 km) |
| Odivelas to Oignies | 1,001.94 mi (1,612.47 km) |
| Odivelas to Oissel | 887.91 mi (1,428.95 km) |
| Odivelas to Olivet | 836.87 mi (1,346.81 km) |
| Odivelas to Ollioules | 838.12 mi (1,348.83 km) |
| Odivelas to Olonne-sur-Mer | 653.60 mi (1,051.86 km) |
| Odivelas to Oloron-Sainte-Marie | 540.37 mi (869.64 km) |
| Odivelas to Onet Village | 719.11 mi (1,157.29 km) |
| Odivelas to Onnaing | 1,015.53 mi (1,634.34 km) |
| Odivelas to Orange | 811.64 mi (1,306.21 km) |
| Odivelas to Orchies | 1,009.51 mi (1,624.64 km) |
| Odivelas to Orleans | 839.02 mi (1,350.27 km) |
| Odivelas to Orly | 895.93 mi (1,441.86 km) |
| Odivelas to Ormesson-sur-Marne | 902.63 mi (1,452.65 km) |
| Odivelas to Orsay | 887.16 mi (1,427.74 km) |
