| San Carlos to Octeville | 5,413.32 mi (8,711.90 km) |
| San Carlos to Oignies | 5,510.04 mi (8,867.55 km) |
| San Carlos to Oissel | 5,511.78 mi (8,870.35 km) |
| San Carlos to Olivet | 5,612.42 mi (9,032.32 km) |
| San Carlos to Ollioules | 5,985.05 mi (9,632.01 km) |
| San Carlos to Olonne-sur-Mer | 5,562.71 mi (8,952.31 km) |
| San Carlos to Oloron-Sainte-Marie | 5,769.83 mi (9,285.65 km) |
| San Carlos to Onet Village | 5,816.06 mi (9,360.05 km) |
| San Carlos to Onnaing | 5,531.72 mi (8,902.45 km) |
| San Carlos to Orange | 5,898.78 mi (9,493.17 km) |
| San Carlos to Orchies | 5,516.99 mi (8,878.74 km) |
| San Carlos to Orleans | 5,610.69 mi (9,029.53 km) |
| San Carlos to Orly | 5,581.88 mi (8,983.16 km) |
| San Carlos to Ormesson-sur-Marne | 5,584.08 mi (8,986.71 km) |
| San Carlos to Orsay | 5,578.05 mi (8,977.01 km) |
