| Foster City to Octeville | 5,410.02 mi (8,706.59 km) |
| Foster City to Oignies | 5,506.63 mi (8,862.07 km) |
| Foster City to Oissel | 5,508.43 mi (8,864.97 km) |
| Foster City to Olivet | 5,609.10 mi (9,026.98 km) |
| Foster City to Ollioules | 5,981.77 mi (9,626.72 km) |
| Foster City to Olonne-sur-Mer | 5,559.49 mi (8,947.14 km) |
| Foster City to Oloron-Sainte-Marie | 5,766.69 mi (9,280.59 km) |
| Foster City to Onet Village | 5,812.82 mi (9,354.83 km) |
| Foster City to Onnaing | 5,528.31 mi (8,896.96 km) |
| Foster City to Orange | 5,895.50 mi (9,487.88 km) |
| Foster City to Orchies | 5,513.59 mi (8,873.26 km) |
| Foster City to Orleans | 5,607.37 mi (9,024.19 km) |
| Foster City to Orly | 5,578.53 mi (8,977.77 km) |
| Foster City to Ormesson-sur-Marne | 5,580.73 mi (8,981.31 km) |
| Foster City to Orsay | 5,574.71 mi (8,971.63 km) |
