There are
1,414 mi
from Gilbert, AZ to Sammamish, WA
That's the driving distance. It would take 1 day 2 hours to go from Gilbert, Arizona to Sammamish, Washington.
The flight distance (direct flight from Gilbert, AZ to Sammamish, WA) is 1,123.34 mi.
1,414 mi = 2,275.88 kms