There are
1,917 mi
from Simi Valley, CA to Union City, TN
That's the driving distance. It would take 1 day 9 hours to go from Simi Valley, California to Union City, Tennessee.
The flight distance (direct flight from Simi Valley, CA to Union City, TN) is 1,675.14 mi.
1,917 mi = 1.61 kms