There are
2,240 mi
from Carmel, IN to Seatac, WA
That's the driving distance. It would take 1 day 15 hours to go from Carmel, Indiana to Seatac, Washington.
The flight distance (direct flight from Carmel, IN to Seatac, WA) is 1,861.60 mi.
2,240 mi = 3.22 kms