| San Francisco to Octeville | 5,404.20 mi (8,697.22 km) |
| San Francisco to Oignies | 5,500.03 mi (8,851.45 km) |
| San Francisco to Oissel | 5,502.30 mi (8,855.09 km) |
| San Francisco to Olivet | 5,603.13 mi (9,017.37 km) |
| San Francisco to Ollioules | 5,976.05 mi (9,617.53 km) |
| San Francisco to Olonne-sur-Mer | 5,554.30 mi (8,938.78 km) |
| San Francisco to Oloron-Sainte-Marie | 5,761.98 mi (9,273.01 km) |
| San Francisco to Onet Village | 5,807.39 mi (9,346.10 km) |
| San Francisco to Onnaing | 5,521.65 mi (8,886.24 km) |
| San Francisco to Orange | 5,889.77 mi (9,478.67 km) |
| San Francisco to Orchies | 5,506.95 mi (8,862.58 km) |
| San Francisco to Orleans | 5,601.39 mi (9,014.56 km) |
| San Francisco to Orly | 5,572.32 mi (8,967.79 km) |
| San Francisco to Ormesson-sur-Marne | 5,574.50 mi (8,971.28 km) |
| San Francisco to Orsay | 5,568.54 mi (8,961.70 km) |
