| San Mateo to Octeville | 5,411.64 mi (8,709.19 km) |
| San Mateo to Oignies | 5,508.15 mi (8,864.51 km) |
| San Mateo to Oissel | 5,510.01 mi (8,867.51 km) |
| San Mateo to Olivet | 5,610.70 mi (9,029.55 km) |
| San Mateo to Ollioules | 5,983.40 mi (9,629.35 km) |
| San Mateo to Olonne-sur-Mer | 5,561.19 mi (8,949.87 km) |
| San Mateo to Oloron-Sainte-Marie | 5,768.44 mi (9,283.41 km) |
| San Mateo to Onet Village | 5,814.49 mi (9,357.51 km) |
| San Mateo to Onnaing | 5,529.82 mi (8,899.39 km) |
| San Mateo to Orange | 5,897.12 mi (9,490.50 km) |
| San Mateo to Orchies | 5,515.10 mi (8,875.69 km) |
| San Mateo to Orleans | 5,608.97 mi (9,026.76 km) |
| San Mateo to Orly | 5,580.10 mi (8,980.30 km) |
| San Mateo to Ormesson-sur-Marne | 5,582.29 mi (8,983.83 km) |
| San Mateo to Orsay | 5,576.28 mi (8,974.16 km) |
