| Overlea to Nyon | 4,023.47 mi (6,475.15 km) |
| Overlea to Oberriet | 4,136.28 mi (6,656.70 km) |
| Overlea to Obersiggenthal | 4,077.69 mi (6,562.40 km) |
| Overlea to Oberwil | 4,045.91 mi (6,511.26 km) |
| Overlea to Oberwingert | 4,096.74 mi (6,593.06 km) |
| Overlea to Oftringen | 4,067.07 mi (6,545.32 km) |
| Overlea to Olten | 4,065.36 mi (6,542.57 km) |
| Overlea to Onex | 4,023.70 mi (6,475.51 km) |
| Overlea to Opfikon | 4,090.83 mi (6,583.56 km) |
| Overlea to Ostermundigen | 4,059.95 mi (6,533.86 km) |
| Overlea to Payerne | 4,040.47 mi (6,502.52 km) |
| Overlea to Pfaffikon | 4,101.95 mi (6,601.45 km) |
| Overlea to Plan-les-Ouates | 4,024.91 mi (6,477.47 km) |
| Overlea to Pratteln | 4,051.93 mi (6,520.95 km) |
| Overlea to Prilly | 4,034.73 mi (6,493.26 km) |
