There are
1,381 mi
from Garland, TX to Niagara Falls, NY
That's the driving distance. It would take 1 day 1 hour to go from Garland, Texas to Niagara Falls, New York.
The flight distance (direct flight from Garland, TX to Niagara Falls, NY) is 1,184.79 mi.
1,381 mi = 1.61 kms