There are
970 mi
from Gastonia, NC to Leavenworth, KS
That's the driving distance. It would take 18 hours 28 mins to go from Gastonia, North Carolina to Leavenworth, Kansas.
The flight distance (direct flight from Gastonia, NC to Leavenworth, KS) is 804.18 mi.
970 mi = 1,560.48 kms