| Oostkamp to Novi di Modena | 558.51 mi (898.83 km) |
| Oostkamp to Novi Ligure | 510.74 mi (821.95 km) |
| Oostkamp to Nuoro | 803.79 mi (1,293.58 km) |
| Oostkamp to Occhiobello | 577.30 mi (929.08 km) |
| Oostkamp to Oderzo | 562.90 mi (905.90 km) |
| Oostkamp to Oggiono | 464.62 mi (747.73 km) |
| Oostkamp to Olbia | 767.84 mi (1,235.72 km) |
| Oostkamp to Oleggio | 456.50 mi (734.67 km) |
| Oostkamp to Olgiate Comasco | 454.29 mi (731.11 km) |
| Oostkamp to Olgiate Olona | 460.85 mi (741.67 km) |
| Oostkamp to Omegna | 434.41 mi (699.12 km) |
| Oostkamp to Opera | 484.07 mi (779.04 km) |
| Oostkamp to Oppeano | 544.78 mi (876.73 km) |
| Oostkamp to Orbassano | 468.64 mi (754.21 km) |
| Oostkamp to Orbetello | 709.66 mi (1,142.09 km) |
