There are
2,830 mi
from Allentown, PA to Larkspur, CA
That's the driving distance. It would take 2 days 1 hour to go from Allentown, Pennsylvania to Larkspur, California.
The flight distance (direct flight from Allentown, PA to Larkspur, CA) is 2,493.15 mi.
2,830 mi = 3.22 kms