| Cities | Distance |
|---|---|
| Opwijk to Oria | 968.44 mi (1,558.55 km) |
| Opwijk to Oristano | 793.18 mi (1,276.51 km) |
| Opwijk to Orta Nova | 862.65 mi (1,388.30 km) |
| Opwijk to Orte | 703.62 mi (1,132.37 km) |
| Opwijk to Ortona | 766.11 mi (1,232.93 km) |
| Opwijk to Orvieto | 681.14 mi (1,096.19 km) |
| Opwijk to Orzinuovi | 466.70 mi (751.08 km) |
| Opwijk to Osimo | 675.52 mi (1,087.14 km) |
| Opwijk to Ospitaletto | 461.41 mi (742.57 km) |
| Opwijk to Ostuni | 954.05 mi (1,535.39 km) |
| Opwijk to Ottaviano | 854.70 mi (1,375.50 km) |
| Opwijk to Ovada | 483.55 mi (778.20 km) |
| Opwijk to Ozieri | 753.56 mi (1,212.74 km) |
| Opwijk to Paceco | 985.84 mi (1,586.56 km) |
| Opwijk to Pachino | 1,122.12 mi (1,805.88 km) |