| Westchase to Nyon | 4,790.90 mi (7,710.22 km) |
| Westchase to Oberriet | 4,916.13 mi (7,911.74 km) |
| Westchase to Obersiggenthal | 4,856.24 mi (7,815.37 km) |
| Westchase to Oberwil | 4,823.29 mi (7,762.34 km) |
| Westchase to Oberwingert | 4,876.36 mi (7,847.74 km) |
| Westchase to Oftringen | 4,843.86 mi (7,795.44 km) |
| Westchase to Olten | 4,842.33 mi (7,792.98 km) |
| Westchase to Onex | 4,789.50 mi (7,707.96 km) |
| Westchase to Opfikon | 4,869.55 mi (7,836.79 km) |
| Westchase to Ostermundigen | 4,833.60 mi (7,778.93 km) |
| Westchase to Payerne | 4,812.17 mi (7,744.43 km) |
| Westchase to Pfaffikon | 4,880.66 mi (7,854.66 km) |
| Westchase to Plan-les-Ouates | 4,790.64 mi (7,709.79 km) |
| Westchase to Pratteln | 4,829.59 mi (7,772.48 km) |
| Westchase to Prilly | 4,803.89 mi (7,731.11 km) |
