| Cities | Distance |
|---|---|
| Willebroek to Oria | 967.41 mi (1,556.89 km) |
| Willebroek to Oristano | 797.49 mi (1,283.44 km) |
| Willebroek to Orta Nova | 862.17 mi (1,387.53 km) |
| Willebroek to Orte | 704.52 mi (1,133.82 km) |
| Willebroek to Ortona | 765.81 mi (1,232.46 km) |
| Willebroek to Orvieto | 682.09 mi (1,097.71 km) |
| Willebroek to Orzinuovi | 467.60 mi (752.52 km) |
| Willebroek to Osimo | 675.11 mi (1,086.48 km) |
| Willebroek to Ospitaletto | 462.05 mi (743.60 km) |
| Willebroek to Ostuni | 952.93 mi (1,533.59 km) |
| Willebroek to Ottaviano | 855.10 mi (1,376.16 km) |
| Willebroek to Ovada | 486.20 mi (782.47 km) |
| Willebroek to Ozieri | 757.45 mi (1,219.01 km) |
| Willebroek to Paceco | 988.31 mi (1,590.54 km) |
| Willebroek to Pachino | 1,123.66 mi (1,808.35 km) |