There are
1,245 mi
from San Diego, CA to Seatac, WA
That's the driving distance. It would take 23 hours 41 mins to go from San Diego, California to Seatac, Washington.
The flight distance (direct flight from San Diego, CA to Seatac, WA) is 1,053.67 mi.
1,245 mi = 1.61 kms