| Willebroek to Oak Harbor (Washington) | 4,890.58 mi (7,870.62 km) |
| Willebroek to Oak Hills (Oregon) | 5,057.57 mi (8,139.37 km) |
| Willebroek to Oak Lawn (Illinois) | 4,144.41 mi (6,669.78 km) |
| Willebroek to Oak Park (California) | 5,610.63 mi (9,029.44 km) |
| Willebroek to Oak Park (Illinois) | 4,137.56 mi (6,658.75 km) |
| Willebroek to Oak Park (Michigan) | 3,936.62 mi (6,335.37 km) |
| Willebroek to Oak Ridge (Florida) | 4,539.66 mi (7,305.88 km) |
| Willebroek to Oak Ridge (New Jersey) | 3,659.93 mi (5,890.09 km) |
| Willebroek to Oak Ridge (Tennessee) | 4,287.16 mi (6,899.52 km) |
| Willebroek to Oakdale (California) | 5,462.08 mi (8,790.37 km) |
| Willebroek to Oakdale (Minnesota) | 4,176.56 mi (6,721.52 km) |
| Willebroek to Oakland (California) | 5,499.14 mi (8,850.02 km) |
| Willebroek to Oakland (New Jersey) | 3,649.65 mi (5,873.55 km) |
| Willebroek to Oakland Park (Florida) | 4,602.12 mi (7,406.39 km) |
| Willebroek to Oakleaf Plantation (Florida) | 4,472.23 mi (7,197.36 km) |
