There are
1,428 mi
from Downey, CA to Grapevine, TX
That's the driving distance. It would take 1 day to go from Downey, California to Grapevine, Texas.
The flight distance (direct flight from Downey, CA to Grapevine, TX) is 1,213.84 mi.
1,428 mi = 1.61 kms