| Olgiate Comasco to Octeville | 559.54 mi (900.49 km) |
| Olgiate Comasco to Oignies | 424.82 mi (683.68 km) |
| Olgiate Comasco to Oissel | 441.54 mi (710.58 km) |
| Olgiate Comasco to Olivet | 363.50 mi (585.00 km) |
| Olgiate Comasco to Ollioules | 238.79 mi (384.29 km) |
| Olgiate Comasco to Olonne-sur-Mer | 516.19 mi (830.72 km) |
| Olgiate Comasco to Oloron-Sainte-Marie | 504.25 mi (811.51 km) |
| Olgiate Comasco to Onet Village | 325.92 mi (524.51 km) |
| Olgiate Comasco to Onnaing | 403.03 mi (648.61 km) |
| Olgiate Comasco to Orange | 232.81 mi (374.68 km) |
| Olgiate Comasco to Orchies | 417.73 mi (672.27 km) |
| Olgiate Comasco to Orleans | 364.09 mi (585.95 km) |
| Olgiate Comasco to Orly | 369.74 mi (595.03 km) |
| Olgiate Comasco to Ormesson-sur-Marne | 365.61 mi (588.40 km) |
| Olgiate Comasco to Orsay | 376.20 mi (605.43 km) |
