There are
2,616 mi
from Antioch, CA to Niagara Falls, NY
That's the driving distance. It would take 1 day 21 hours to go from Antioch, California to Niagara Falls, New York.
The flight distance (direct flight from Antioch, CA to Niagara Falls, NY) is 2,247.93 mi.
2,616 mi = 4,209.74 kms