| Mount Vernon to Nyon | 3,845.71 mi (6,189.07 km) |
| Mount Vernon to Oberriet | 3,958.47 mi (6,370.54 km) |
| Mount Vernon to Obersiggenthal | 3,899.87 mi (6,276.24 km) |
| Mount Vernon to Oberwil | 3,868.09 mi (6,225.09 km) |
| Mount Vernon to Oberwingert | 3,918.93 mi (6,306.91 km) |
| Mount Vernon to Oftringen | 3,889.25 mi (6,259.15 km) |
| Mount Vernon to Olten | 3,887.54 mi (6,256.40 km) |
| Mount Vernon to Onex | 3,845.96 mi (6,189.48 km) |
| Mount Vernon to Opfikon | 3,913.02 mi (6,297.39 km) |
| Mount Vernon to Ostermundigen | 3,882.14 mi (6,247.70 km) |
| Mount Vernon to Payerne | 3,862.67 mi (6,216.37 km) |
| Mount Vernon to Pfaffikon | 3,924.14 mi (6,315.29 km) |
| Mount Vernon to Plan-les-Ouates | 3,847.18 mi (6,191.43 km) |
| Mount Vernon to Pratteln | 3,874.11 mi (6,234.78 km) |
| Mount Vernon to Prilly | 3,856.94 mi (6,207.15 km) |
