There are
1,863 mi
from Oshkosh, WI to Yakima, WA
That's the driving distance. It would take 1 day 8 hours to go from Oshkosh, Wisconsin to Yakima, Washington.
The flight distance (direct flight from Oshkosh, WI to Yakima, WA) is 1,552.45 mi.
1,863 mi = 2,998.88 kms