There are
2,739 mi
from Everett, WA to Gaithersburg, MD
That's the driving distance. It would take 2 days to go from Everett, Washington to Gaithersburg, Maryland.
The flight distance (direct flight from Everett, WA to Gaithersburg, MD) is 2,298.92 mi.
2,739 mi = 3.22 kms