| Parkersburg to Nyon | 4,241.33 mi (6,825.76 km) |
| Parkersburg to Oberriet | 4,348.06 mi (6,997.52 km) |
| Parkersburg to Obersiggenthal | 4,290.29 mi (6,904.56 km) |
| Parkersburg to Oberwil | 4,259.19 mi (6,854.51 km) |
| Parkersburg to Oberwingert | 4,308.77 mi (6,934.29 km) |
| Parkersburg to Oftringen | 4,280.56 mi (6,888.90 km) |
| Parkersburg to Olten | 4,278.77 mi (6,886.02 km) |
| Parkersburg to Onex | 4,242.25 mi (6,827.24 km) |
| Parkersburg to Opfikon | 4,303.31 mi (6,925.51 km) |
| Parkersburg to Ostermundigen | 4,274.92 mi (6,879.82 km) |
| Parkersburg to Payerne | 4,256.40 mi (6,850.01 km) |
| Parkersburg to Pfaffikon | 4,314.40 mi (6,943.36 km) |
| Parkersburg to Plan-les-Ouates | 4,243.50 mi (6,829.25 km) |
| Parkersburg to Pratteln | 4,265.05 mi (6,863.94 km) |
| Parkersburg to Prilly | 4,251.79 mi (6,842.60 km) |
