| Keystone to Nyon | 4,787.07 mi (7,704.04 km) |
| Keystone to Oberriet | 4,912.19 mi (7,905.41 km) |
| Keystone to Obersiggenthal | 4,852.32 mi (7,809.05 km) |
| Keystone to Oberwil | 4,819.37 mi (7,756.03 km) |
| Keystone to Oberwingert | 4,872.42 mi (7,841.41 km) |
| Keystone to Oftringen | 4,839.95 mi (7,789.14 km) |
| Keystone to Olten | 4,838.42 mi (7,786.68 km) |
| Keystone to Onex | 4,785.68 mi (7,701.81 km) |
| Keystone to Opfikon | 4,865.63 mi (7,830.47 km) |
| Keystone to Ostermundigen | 4,829.72 mi (7,772.68 km) |
| Keystone to Payerne | 4,808.30 mi (7,738.20 km) |
| Keystone to Pfaffikon | 4,876.73 mi (7,848.34 km) |
| Keystone to Plan-les-Ouates | 4,786.82 mi (7,703.63 km) |
| Keystone to Pratteln | 4,825.67 mi (7,766.17 km) |
| Keystone to Prilly | 4,800.04 mi (7,724.91 km) |
