There are
2,650 mi
from Bethlehem, PA to Fontana, CA
That's the driving distance. It would take 1 day 23 hours to go from Bethlehem, Pennsylvania to Fontana, California.
The flight distance (direct flight from Bethlehem, PA to Fontana, CA) is 2,331.05 mi.
2,650 mi = 4,264.56 kms