| Saint-Gratien to Octeville | 182.56 mi (293.80 km) |
| Saint-Gratien to Oignies | 108.21 mi (174.15 km) |
| Saint-Gratien to Oissel | 59.60 mi (95.91 km) |
| Saint-Gratien to Olivet | 78.54 mi (126.39 km) |
| Saint-Gratien to Ollioules | 437.60 mi (704.24 km) |
| Saint-Gratien to Olonne-sur-Mer | 252.55 mi (406.44 km) |
| Saint-Gratien to Oloron-Sainte-Marie | 422.45 mi (679.87 km) |
| Saint-Gratien to Onet Village | 318.60 mi (512.74 km) |
| Saint-Gratien to Onnaing | 114.14 mi (183.69 km) |
| Saint-Gratien to Orange | 354.84 mi (571.06 km) |
| Saint-Gratien to Orchies | 112.36 mi (180.83 km) |
| Saint-Gratien to Orleans | 75.85 mi (122.07 km) |
| Saint-Gratien to Orly | 16.53 mi (26.60 km) |
| Saint-Gratien to Ormesson-sur-Marne | 17.32 mi (27.88 km) |
| Saint-Gratien to Orsay | 19.41 mi (31.23 km) |
