| Marion to Octeville | 4,096.48 mi (6,592.66 km) |
| Marion to Oignies | 4,241.80 mi (6,826.53 km) |
| Marion to Oissel | 4,211.75 mi (6,778.15 km) |
| Marion to Olivet | 4,297.82 mi (6,916.67 km) |
| Marion to Ollioules | 4,641.66 mi (7,470.03 km) |
| Marion to Olonne-sur-Mer | 4,201.33 mi (6,761.39 km) |
| Marion to Oloron-Sainte-Marie | 4,374.32 mi (7,039.78 km) |
| Marion to Onet Village | 4,460.50 mi (7,178.47 km) |
| Marion to Onnaing | 4,267.23 mi (6,867.44 km) |
| Marion to Orange | 4,558.90 mi (7,336.84 km) |
| Marion to Orchies | 4,250.88 mi (6,841.14 km) |
| Marion to Orleans | 4,296.69 mi (6,914.85 km) |
| Marion to Orly | 4,283.65 mi (6,893.87 km) |
| Marion to Ormesson-sur-Marne | 4,287.63 mi (6,900.28 km) |
| Marion to Orsay | 4,277.52 mi (6,884.00 km) |
