| Winsum to Orbetello | 782.95 mi (1,260.04 km) |
| Winsum to Oria | 1,027.48 mi (1,653.57 km) |
| Winsum to Oristano | 932.72 mi (1,501.06 km) |
| Winsum to Orta Nova | 932.54 mi (1,500.77 km) |
| Winsum to Orte | 798.15 mi (1,284.50 km) |
| Winsum to Ortona | 841.03 mi (1,353.51 km) |
| Winsum to Orvieto | 776.92 mi (1,250.33 km) |
| Winsum to Orzinuovi | 568.99 mi (915.70 km) |
| Winsum to Osimo | 750.88 mi (1,208.43 km) |
| Winsum to Ospitaletto | 560.35 mi (901.79 km) |
| Winsum to Ostuni | 1,011.91 mi (1,628.51 km) |
| Winsum to Ottaviano | 938.80 mi (1,510.85 km) |
| Winsum to Ovada | 608.21 mi (978.81 km) |
| Winsum to Ozieri | 888.32 mi (1,429.61 km) |
| Winsum to Paceco | 1,098.77 mi (1,768.30 km) |
