There are
1,911 mi
from Salt Lake City, UT to Niagara Falls, NY
That's the driving distance. It would take 1 day 9 hours to go from Salt Lake City, Utah to Niagara Falls, New York.
The flight distance (direct flight from Salt Lake City, UT to Niagara Falls, NY) is 1,685.63 mi.
1,911 mi = 3,075.24 kms