There are
1,824 mi
from Topeka, KS to Sammamish, WA
That's the driving distance. It would take 1 day 7 hours to go from Topeka, Kansas to Sammamish, Washington.
The flight distance (direct flight from Topeka, KS to Sammamish, WA) is 1,443.37 mi.
1,824 mi = 1.61 kms