There are
1,416 mi
from Warwick, RI to Leavenworth, KS
That's the driving distance. It would take 1 day 3 hours to go from Warwick, Rhode Island to Leavenworth, Kansas.
The flight distance (direct flight from Warwick, RI to Leavenworth, KS) is 1,241.94 mi.
1,416 mi = 1.61 kms