| Willebroek to Oberriet | 349.50 mi (562.46 km) |
| Willebroek to Obersiggenthal | 304.02 mi (489.27 km) |
| Willebroek to Oberwil | 284.38 mi (457.67 km) |
| Willebroek to Oberwingert | 315.33 mi (507.47 km) |
| Willebroek to Oftringen | 304.59 mi (490.20 km) |
| Willebroek to Olten | 302.21 mi (486.37 km) |
| Willebroek to Onex | 346.54 mi (557.71 km) |
| Willebroek to Opfikon | 314.38 mi (505.95 km) |
| Willebroek to Ostermundigen | 317.32 mi (510.67 km) |
| Willebroek to Payerne | 315.85 mi (508.32 km) |
| Willebroek to Pfaffikon | 324.05 mi (521.50 km) |
| Willebroek to Plan-les-Ouates | 347.84 mi (559.79 km) |
| Willebroek to Pratteln | 287.55 mi (462.77 km) |
| Willebroek to Prilly | 329.26 mi (529.90 km) |
| Willebroek to Pully | 331.30 mi (533.18 km) |
