| Cazzago San Martino to Octeville | 610.33 mi (982.23 km) |
| Cazzago San Martino to Oignies | 468.25 mi (753.58 km) |
| Cazzago San Martino to Oissel | 491.12 mi (790.39 km) |
| Cazzago San Martino to Olivet | 415.64 mi (668.91 km) |
| Cazzago San Martino to Ollioules | 266.56 mi (428.99 km) |
| Cazzago San Martino to Olonne-sur-Mer | 568.97 mi (915.67 km) |
| Cazzago San Martino to Oloron-Sainte-Marie | 549.80 mi (884.82 km) |
| Cazzago San Martino to Onet Village | 372.72 mi (599.83 km) |
| Cazzago San Martino to Onnaing | 445.35 mi (716.72 km) |
| Cazzago San Martino to Orange | 274.17 mi (441.24 km) |
| Cazzago San Martino to Orchies | 460.59 mi (741.25 km) |
| Cazzago San Martino to Orleans | 416.17 mi (669.75 km) |
| Cazzago San Martino to Orly | 419.60 mi (675.29 km) |
| Cazzago San Martino to Ormesson-sur-Marne | 415.21 mi (668.21 km) |
| Cazzago San Martino to Orsay | 426.39 mi (686.21 km) |
