There are
686 mi
from Temecula, CA to Taylorsville, UT
That's the driving distance. It would take 11 hours 58 mins to go from Temecula, California to Taylorsville, Utah.
The flight distance (direct flight from Temecula, CA to Taylorsville, UT) is 572.57 mi.
686 mi = 1,103.89 kms