| Barstow to Nyon | 5,808.80 mi (9,348.37 km) |
| Barstow to Oberriet | 5,867.68 mi (9,443.12 km) |
| Barstow to Obersiggenthal | 5,819.16 mi (9,365.03 km) |
| Barstow to Oberwil | 5,794.53 mi (9,325.40 km) |
| Barstow to Oberwingert | 5,832.54 mi (9,386.57 km) |
| Barstow to Oftringen | 5,816.00 mi (9,359.95 km) |
| Barstow to Olten | 5,813.78 mi (9,356.37 km) |
| Barstow to Onex | 5,814.41 mi (9,357.39 km) |
| Barstow to Opfikon | 5,830.51 mi (9,383.31 km) |
| Barstow to Ostermundigen | 5,820.77 mi (9,367.63 km) |
| Barstow to Payerne | 5,809.86 mi (9,350.07 km) |
| Barstow to Pfaffikon | 5,840.71 mi (9,399.72 km) |
| Barstow to Plan-les-Ouates | 5,815.79 mi (9,359.61 km) |
| Barstow to Pratteln | 5,798.97 mi (9,332.54 km) |
| Barstow to Prilly | 5,813.29 mi (9,355.59 km) |
