| San Martin de Valdeiglesias to Octeville | 653.91 mi (1,052.37 km) |
| San Martin de Valdeiglesias to Oignies | 784.00 mi (1,261.72 km) |
| San Martin de Valdeiglesias to Oissel | 675.68 mi (1,087.41 km) |
| San Martin de Valdeiglesias to Olivet | 604.70 mi (973.17 km) |
| San Martin de Valdeiglesias to Ollioules | 561.51 mi (903.67 km) |
| San Martin de Valdeiglesias to Olonne-sur-Mer | 446.29 mi (718.24 km) |
| San Martin de Valdeiglesias to Oloron-Sainte-Marie | 276.45 mi (444.91 km) |
| San Martin de Valdeiglesias to Onet Village | 451.33 mi (726.34 km) |
| San Martin de Valdeiglesias to Onnaing | 792.90 mi (1,276.05 km) |
| San Martin de Valdeiglesias to Orange | 537.97 mi (865.78 km) |
| San Martin de Valdeiglesias to Orchies | 789.89 mi (1,271.20 km) |
| San Martin de Valdeiglesias to Orleans | 607.14 mi (977.10 km) |
| San Martin de Valdeiglesias to Orly | 668.04 mi (1,075.11 km) |
| San Martin de Valdeiglesias to Ormesson-sur-Marne | 674.05 mi (1,084.79 km) |
| San Martin de Valdeiglesias to Orsay | 660.38 mi (1,062.79 km) |
