| Mariano Comense to Octeville | 571.44 mi (919.65 km) |
| Mariano Comense to Oignies | 435.82 mi (701.38 km) |
| Mariano Comense to Oissel | 453.35 mi (729.60 km) |
| Mariano Comense to Olivet | 375.41 mi (604.17 km) |
| Mariano Comense to Ollioules | 241.64 mi (388.88 km) |
| Mariano Comense to Olonne-sur-Mer | 527.47 mi (848.87 km) |
| Mariano Comense to Oloron-Sainte-Marie | 512.58 mi (824.92 km) |
| Mariano Comense to Onet Village | 334.60 mi (538.49 km) |
| Mariano Comense to Onnaing | 413.84 mi (666.02 km) |
| Mariano Comense to Orange | 239.60 mi (385.60 km) |
| Mariano Comense to Orchies | 428.64 mi (689.82 km) |
| Mariano Comense to Orleans | 376.00 mi (605.12 km) |
| Mariano Comense to Orly | 381.57 mi (614.08 km) |
| Mariano Comense to Ormesson-sur-Marne | 377.42 mi (607.40 km) |
| Mariano Comense to Orsay | 388.06 mi (624.52 km) |
