There are
2,656 mi
from Fresno, CA to Niagara Falls, NY
That's the driving distance. It would take 1 day 23 hours to go from Fresno, California to Niagara Falls, New York.
The flight distance (direct flight from Fresno, CA to Niagara Falls, NY) is 2,180.42 mi.
2,656 mi = 3.22 kms