So here's what I see in this graphic: lots of travel to/ from Little Rock, AR. Some are traveling back and forth to the DC area. Some are traveling back and forth to Kansas. There are tons of reasons for the DC flights. But there is one interesting reason for the Kansas flights. FT Leavenworth is located near Topeka/ Kansas City. Fort Leavenworth is home to the Military Corrections Complex, consisting of the United States Disciplinary Barracks, the Department of Defense's only maximum security prison and the Midwest Joint Regional Correctional Facility.
Just an observation. Nothing else supporting it.