There are
1,821 mi
from Temecula, CA to Festus, MO
That's the driving distance. It would take 1 day 7 hours to go from Temecula, California to Festus, Missouri.
The flight distance (direct flight from Temecula, CA to Festus, MO) is 1,527.57 mi.
1,821 mi = 1.61 kms