There are
2,932 mi
from New Britain, CT to Seatac, WA
That's the driving distance. It would take 2 days 4 hours to go from New Britain, Connecticut to Seatac, Washington.
The flight distance (direct flight from New Britain, CT to Seatac, WA) is 2,429.51 mi.
2,932 mi = 3.22 kms