There are
2,006 mi
from Yakima, WA to Merrillville, IN
That's the driving distance. It would take 1 day 11 hours to go from Yakima, Washington to Merrillville, Indiana.
The flight distance (direct flight from Yakima, WA to Merrillville, IN) is 1,672.03 mi.
2,006 mi = 3.22 kms