There are
2,687 mi
from Sunnyvale, CA to North Tonawanda, NY
That's the driving distance. It would take 1 day 23 hours to go from Sunnyvale, California to North Tonawanda, New York.
The flight distance (direct flight from Sunnyvale, CA to North Tonawanda, NY) is 2,285.90 mi.
2,687 mi = 3.22 kms