There are
1,860 mi
from Oshkosh, WI to Pendleton, OR
That's the driving distance. It would take 1 day 8 hours to go from Oshkosh, Wisconsin to Pendleton, Oregon.
The flight distance (direct flight from Oshkosh, WI to Pendleton, OR) is 1,477.16 mi.
1,860 mi = 2,993.84 kms