There are
2,654 mi
from Temecula, CA to Herndon, VA
That's the driving distance. It would take 1 day 22 hours to go from Temecula, California to Herndon, Virginia.
The flight distance (direct flight from Temecula, CA to Herndon, VA) is 2,230.15 mi.
2,654 mi = 3.22 kms