There are
1,444 mi
from Rowlett, TX to Lansdowne, PA
That's the driving distance. It would take 1 day 2 hours to go from Rowlett, Texas to Lansdowne, Pennsylvania.
The flight distance (direct flight from Rowlett, TX to Lansdowne, PA) is 1,275.65 mi.
1,444 mi = 2,323.66 kms