There are
2,873 mi
from Stamford, CT to Seatac, WA
That's the driving distance. It would take 2 days 3 hours to go from Stamford, Connecticut to Seatac, Washington.
The flight distance (direct flight from Stamford, CT to Seatac, WA) is 2,413.50 mi.
2,873 mi = 3.22 kms