| Darby to Nyon | 3,946.78 mi (6,351.73 km) |
| Darby to Oberriet | 4,059.95 mi (6,533.86 km) |
| Darby to Obersiggenthal | 4,001.31 mi (6,439.49 km) |
| Darby to Oberwil | 3,969.49 mi (6,388.28 km) |
| Darby to Oberwingert | 4,020.40 mi (6,470.21 km) |
| Darby to Oftringen | 3,990.64 mi (6,422.31 km) |
| Darby to Olten | 3,988.93 mi (6,419.57 km) |
| Darby to Onex | 3,946.97 mi (6,352.03 km) |
| Darby to Opfikon | 4,014.46 mi (6,460.65 km) |
| Darby to Ostermundigen | 3,983.42 mi (6,410.70 km) |
| Darby to Payerne | 3,963.89 mi (6,379.27 km) |
| Darby to Pfaffikon | 4,025.58 mi (6,478.55 km) |
| Darby to Plan-les-Ouates | 3,948.18 mi (6,353.99 km) |
| Darby to Pratteln | 3,975.52 mi (6,397.98 km) |
| Darby to Prilly | 3,958.08 mi (6,369.91 km) |
