There are
806 mi
from Livermore, CA to Seatac, WA
That's the driving distance. It would take 15 hours 32 mins to go from Livermore, California to Seatac, Washington.
The flight distance (direct flight from Livermore, CA to Seatac, WA) is 675.75 mi.
806 mi = 1,297.61 kms