| Alcobaca to Octeville | 783.16 mi (1,260.37 km) |
| Alcobaca to Oignies | 951.88 mi (1,531.90 km) |
| Alcobaca to Oissel | 837.55 mi (1,347.91 km) |
| Alcobaca to Olivet | 789.04 mi (1,269.84 km) |
| Alcobaca to Ollioules | 806.62 mi (1,298.13 km) |
| Alcobaca to Olonne-sur-Mer | 603.73 mi (971.61 km) |
| Alcobaca to Oloron-Sainte-Marie | 501.32 mi (806.80 km) |
| Alcobaca to Onet Village | 680.29 mi (1,094.82 km) |
| Alcobaca to Onnaing | 965.96 mi (1,554.55 km) |
| Alcobaca to Orange | 775.88 mi (1,248.66 km) |
| Alcobaca to Orchies | 959.61 mi (1,544.34 km) |
| Alcobaca to Orleans | 791.14 mi (1,273.22 km) |
| Alcobaca to Orly | 847.32 mi (1,363.62 km) |
| Alcobaca to Ormesson-sur-Marne | 854.09 mi (1,374.52 km) |
| Alcobaca to Orsay | 838.42 mi (1,349.31 km) |
