AA 5826 then DL 5626 at Charlotte
Knoxville → Charlotte → Boston
Timetable, Charlotte time
10:54AA 5826 from Knoxville at the gate
09:50DL 5626 to Boston leaves the gate
22 h 56 apart on the timetable, overnight
DL 5626 leaves 22 h 56 after AA 5826 arrives on the timetable: more than half a day, so not a connection we count.