There are
2,872 mi
from Danbury, CT to Mercer Island, WA
That's the driving distance. It would take 2 days 3 hours to go from Danbury, Connecticut to Mercer Island, Washington.
The flight distance (direct flight from Danbury, CT to Mercer Island, WA) is 2,400.88 mi.
2,872 mi = 3.22 kms