There are
2,873 mi
from Bethlehem, PA to Los Altos, CA
That's the driving distance. It would take 2 days 2 hours to go from Bethlehem, Pennsylvania to Los Altos, California.
The flight distance (direct flight from Bethlehem, PA to Los Altos, CA) is 2,490.19 mi.
2,873 mi = 4,623.89 kms