Located in northeastern Kansas at the junction of U.S. Route 73 and Kansas Highway 92 ( K-92 ) , Leavenworth is 25 mi ( 40 km ) northwest of downtown Kansas City , 145 mi ( 233 km ) south-southeast of Omaha , and 165 mi ( 266 km ) northeast of Wichita .
Leavenworth is about 25 miles ( 40 km ) northwest of Kansas City , Missouri .