| Alenquer to Octeville | 815.65 mi (1,312.66 km) |
| Alenquer to Oignies | 982.10 mi (1,580.54 km) |
| Alenquer to Oissel | 868.03 mi (1,396.97 km) |
| Alenquer to Olivet | 817.34 mi (1,315.39 km) |
| Alenquer to Ollioules | 822.53 mi (1,323.73 km) |
| Alenquer to Olonne-sur-Mer | 633.77 mi (1,019.95 km) |
| Alenquer to Oloron-Sainte-Marie | 522.66 mi (841.14 km) |
| Alenquer to Onet Village | 701.52 mi (1,128.98 km) |
| Alenquer to Onnaing | 995.75 mi (1,602.50 km) |
| Alenquer to Orange | 794.86 mi (1,279.21 km) |
| Alenquer to Orchies | 989.69 mi (1,592.75 km) |
| Alenquer to Orleans | 819.48 mi (1,318.83 km) |
| Alenquer to Orly | 876.28 mi (1,410.24 km) |
| Alenquer to Ormesson-sur-Marne | 882.99 mi (1,421.04 km) |
| Alenquer to Orsay | 867.49 mi (1,396.09 km) |
