There are
1,932 mi
from Oshkosh, WI to Newcastle, WA
That's the driving distance. It would take 1 day 9 hours to go from Oshkosh, Wisconsin to Newcastle, Washington.
The flight distance (direct flight from Oshkosh, WI to Newcastle, WA) is 1,624.75 mi.
1,932 mi = 3,109.57 kms