There are
1,400 mi
from Denison, TX to Temecula, CA
That's the driving distance. It would take 1 day to go from Denison, Texas to Temecula, California.
The flight distance (direct flight from Denison, TX to Temecula, CA) is 1,183.99 mi.
1,400 mi = 2,252.42 kms