There are
1,399 mi
from Temecula, CA to Denison, TX
That's the driving distance. It would take 1 day to go from Temecula, California to Denison, Texas.
The flight distance (direct flight from Temecula, CA to Denison, TX) is 1,183.99 mi.
1,399 mi = 2,251.50 kms