There are
2,968 mi
from Sunnyvale, CA to Westbury, NY
That's the driving distance. It would take 2 days 4 hours to go from Sunnyvale, California to Westbury, New York.
The flight distance (direct flight from Sunnyvale, CA to Westbury, NY) is 2,576.68 mi.
2,968 mi = 3.22 kms