There are
2,640 mi
from Roswell, GA to Seatac, WA
That's the driving distance. It would take 1 day 22 hours to go from Roswell, Georgia to Seatac, Washington.
The flight distance (direct flight from Roswell, GA to Seatac, WA) is 2,165.46 mi.
2,640 mi = 3.22 kms