There are
1,212 mi
from Carlsbad, CA to Seatac, WA
That's the driving distance. It would take 23 hours 1 min to go from Carlsbad, California to Seatac, Washington.
The flight distance (direct flight from Carlsbad, CA to Seatac, WA) is 1,021.31 mi.
1,212 mi = 1.61 kms