There are
1,336 mi
from Lewisville, TX to Dunkirk, NY
That's the driving distance. It would take 1 day to go from Lewisville, Texas to Dunkirk, New York.
The flight distance (direct flight from Lewisville, TX to Dunkirk, NY) is 1,160.46 mi.
1,336 mi = 1.61 kms