There are
2,934 mi
from Waterbury, CT to Marysville, WA
That's the driving distance. It would take 2 days 4 hours to go from Waterbury, Connecticut to Marysville, Washington.
The flight distance (direct flight from Waterbury, CT to Marysville, WA) is 2,407.43 mi.
2,934 mi = 4,721.48 kms