There are
2,706 mi
from Buena Park, CA to Lansdowne, PA
That's the driving distance. It would take 2 days to go from Buena Park, California to Lansdowne, Pennsylvania.
The flight distance (direct flight from Buena Park, CA to Lansdowne, PA) is 2,374.59 mi.
2,706 mi = 4,354.73 kms