There are
1,818 mi
from Temecula, CA to St Peters, MO
That's the driving distance. It would take 1 day 7 hours to go from Temecula, California to St Peters, Missouri.
The flight distance (direct flight from Temecula, CA to St Peters, MO) is 1,519.60 mi.
1,818 mi = 1.61 kms