There are
2,706 mi
from Temecula, CA to Lansdowne, PA
That's the driving distance. It would take 2 days to go from Temecula, California to Lansdowne, Pennsylvania.
The flight distance (direct flight from Temecula, CA to Lansdowne, PA) is 2,339.75 mi.
2,706 mi = 3.22 kms