There are
1,321 mi
from New Haven, CT to Leavenworth, KS
That's the driving distance. It would take 1 day 1 hour to go from New Haven, Connecticut to Leavenworth, Kansas.
The flight distance (direct flight from New Haven, CT to Leavenworth, KS) is 1,163.85 mi.
1,321 mi = 1.61 kms