| Sesto San Giovanni to Octeville | 579.69 mi (932.93 km) |
| Sesto San Giovanni to Oignies | 446.36 mi (718.34 km) |
| Sesto San Giovanni to Oissel | 462.23 mi (743.89 km) |
| Sesto San Giovanni to Olivet | 382.76 mi (616.00 km) |
| Sesto San Giovanni to Ollioules | 235.26 mi (378.61 km) |
| Sesto San Giovanni to Olonne-sur-Mer | 532.00 mi (856.17 km) |
| Sesto San Giovanni to Oloron-Sainte-Marie | 511.82 mi (823.69 km) |
| Sesto San Giovanni to Onet Village | 334.44 mi (538.23 km) |
| Sesto San Giovanni to Onnaing | 424.57 mi (683.28 km) |
| Sesto San Giovanni to Orange | 237.16 mi (381.67 km) |
| Sesto San Giovanni to Orchies | 439.27 mi (706.94 km) |
| Sesto San Giovanni to Orleans | 383.42 mi (617.05 km) |
| Sesto San Giovanni to Orly | 390.36 mi (628.23 km) |
| Sesto San Giovanni to Ormesson-sur-Marne | 386.33 mi (621.75 km) |
| Sesto San Giovanni to Orsay | 396.70 mi (638.42 km) |
