There are
1,797 mi
from Downey, CA to Vicksburg, MS
That's the driving distance. It would take 1 day 7 hours to go from Downey, California to Vicksburg, Mississippi.
The flight distance (direct flight from Downey, CA to Vicksburg, MS) is 1,575.91 mi.
1,797 mi = 1.61 kms