There are
1,350 mi
from Temecula, CA to Harker Heights, TX
That's the driving distance. It would take 23 hours 32 mins to go from Temecula, California to Harker Heights, Texas.
The flight distance (direct flight from Temecula, CA to Harker Heights, TX) is 1,148.67 mi.
1,350 mi = 1.61 kms