There are
498 mi
from Topeka, KS to Mendota Heights, MN
That's the driving distance. It would take 9 hours 1 min to go from Topeka, Kansas to Mendota Heights, Minnesota.
The flight distance (direct flight from Topeka, KS to Mendota Heights, MN) is 423.38 mi.
498 mi = 801.55 kms