There are
1,346 mi
from Lawton, OK to Niagara Falls, NY
That's the driving distance. It would take 1 day to go from Lawton, Oklahoma to Niagara Falls, New York.
The flight distance (direct flight from Lawton, OK to Niagara Falls, NY) is 1,191.39 mi.
1,346 mi = 1.61 kms