There are
2,717 mi
from Yakima, WA to Middletown, DE
That's the driving distance. It would take 2 days to go from Yakima, Washington to Middletown, Delaware.
The flight distance (direct flight from Yakima, WA to Middletown, DE) is 2,283.48 mi.
2,717 mi = 3.22 kms