| Cities | Distance |
|---|---|
| Ostend to Olivenza | 993.27 mi (1,598.52 km) |
| Ostend to Olot | 625.18 mi (1,006.13 km) |
| Ostend to Onate | 618.73 mi (995.74 km) |
| Ostend to Onda | 793.09 mi (1,276.35 km) |
| Ostend to Onteniente | 873.87 mi (1,406.36 km) |
| Ostend to Orihuela | 927.23 mi (1,492.24 km) |
| Ostend to Osuna | 1,043.63 mi (1,679.56 km) |
| Ostend to Ourense | 796.75 mi (1,282.25 km) |
| Ostend to Oviedo | 680.21 mi (1,094.69 km) |
| Ostend to Paiporta | 830.90 mi (1,337.20 km) |
| Ostend to Pajara | 1,810.65 mi (2,913.96 km) |
| Ostend to Palafolls | 660.35 mi (1,062.72 km) |
| Ostend to Palafrugell | 643.25 mi (1,035.21 km) |
| Ostend to Palamos | 648.17 mi (1,043.13 km) |
| Ostend to Palencia | 727.10 mi (1,170.15 km) |