| San Severino Marche to Octeville | 830.58 mi (1,336.69 km) |
| San Severino Marche to Oignies | 692.92 mi (1,115.15 km) |
| San Severino Marche to Oissel | 713.73 mi (1,148.63 km) |
| San Severino Marche to Olivet | 631.77 mi (1,016.74 km) |
| San Severino Marche to Ollioules | 369.23 mi (594.22 km) |
| San Severino Marche to Olonne-sur-Mer | 765.36 mi (1,231.73 km) |
| San Severino Marche to Oloron-Sainte-Marie | 693.33 mi (1,115.81 km) |
| San Severino Marche to Onet Village | 533.23 mi (858.16 km) |
| San Severino Marche to Onnaing | 669.65 mi (1,077.70 km) |
| San Severino Marche to Orange | 422.59 mi (680.09 km) |
| San Severino Marche to Orchies | 685.08 mi (1,102.53 km) |
| San Severino Marche to Orleans | 632.61 mi (1,018.08 km) |
| San Severino Marche to Orly | 641.84 mi (1,032.95 km) |
| San Severino Marche to Ormesson-sur-Marne | 637.83 mi (1,026.49 km) |
| San Severino Marche to Orsay | 648.11 mi (1,043.03 km) |
