| Cities | Distance |
|---|---|
| Ostend to Novi di Modena | 571.41 mi (919.59 km) |
| Ostend to Novi Ligure | 522.30 mi (840.57 km) |
| Ostend to Nuoro | 813.90 mi (1,309.84 km) |
| Ostend to Occhiobello | 590.51 mi (950.34 km) |
| Ostend to Oderzo | 576.77 mi (928.22 km) |
| Ostend to Oggiono | 477.18 mi (767.95 km) |
| Ostend to Olbia | 778.24 mi (1,252.46 km) |
| Ostend to Oleggio | 468.47 mi (753.93 km) |
| Ostend to Olgiate Comasco | 466.61 mi (750.94 km) |
| Ostend to Olgiate Olona | 473.02 mi (761.25 km) |
| Ostend to Omegna | 446.39 mi (718.39 km) |
| Ostend to Opera | 496.31 mi (798.73 km) |
| Ostend to Oppeano | 558.00 mi (898.01 km) |
| Ostend to Orbassano | 479.32 mi (771.39 km) |
| Ostend to Orbetello | 721.63 mi (1,161.34 km) |