There are
507 mi
from Elgin, IL to Leavenworth, KS
That's the driving distance. It would take 9 hours 41 mins to go from Elgin, Illinois to Leavenworth, Kansas.
The flight distance (direct flight from Elgin, IL to Leavenworth, KS) is 395.56 mi.
507 mi = 816.74 kms