There are
2,454 mi
from Yakima, WA to Maryville, TN
That's the driving distance. It would take 1 day 18 hours to go from Yakima, Washington to Maryville, Tennessee.
The flight distance (direct flight from Yakima, WA to Maryville, TN) is 2,020.37 mi.
2,454 mi = 3.22 kms