There are
2,189 mi
from Downey, CA to Maryville, TN
That's the driving distance. It would take 1 day 14 hours to go from Downey, California to Maryville, Tennessee.
The flight distance (direct flight from Downey, CA to Maryville, TN) is 1,931.40 mi.
2,189 mi = 3.22 kms