There are
2,035 mi
from Downey, CA to Merrillville, IN
That's the driving distance. It would take 1 day 11 hours to go from Downey, California to Merrillville, Indiana.
The flight distance (direct flight from Downey, CA to Merrillville, IN) is 1,751.72 mi.
2,035 mi = 3.22 kms