| Estremoz to Octeville | 799.93 mi (1,287.37 km) |
| Estremoz to Oignies | 954.29 mi (1,535.79 km) |
| Estremoz to Oissel | 841.81 mi (1,354.76 km) |
| Estremoz to Olivet | 782.89 mi (1,259.93 km) |
| Estremoz to Ollioules | 759.37 mi (1,222.09 km) |
| Estremoz to Olonne-sur-Mer | 607.12 mi (977.06 km) |
| Estremoz to Oloron-Sainte-Marie | 471.25 mi (758.40 km) |
| Estremoz to Onet Village | 648.54 mi (1,043.73 km) |
| Estremoz to Onnaing | 966.13 mi (1,554.84 km) |
| Estremoz to Orange | 737.01 mi (1,186.10 km) |
| Estremoz to Orchies | 961.25 mi (1,546.98 km) |
| Estremoz to Orleans | 785.16 mi (1,263.60 km) |
| Estremoz to Orly | 843.93 mi (1,358.18 km) |
| Estremoz to Ormesson-sur-Marne | 850.40 mi (1,368.58 km) |
| Estremoz to Orsay | 835.55 mi (1,344.69 km) |
