There are
1,536 mi
from Gilbert, AZ to Marysville, WA
That's the driving distance. It would take 1 day 3 hours to go from Gilbert, Arizona to Marysville, Washington.
The flight distance (direct flight from Gilbert, AZ to Marysville, WA) is 1,149.75 mi.
1,536 mi = 1.61 kms