UA 2196 then DL 2709 at Houston
Austin → Houston → Atlanta
Timetable, Houston time
10:45UA 2196 from Austin at the gate
08:05DL 2709 to Atlanta leaves the gate
21 h 20 apart on the timetable, overnight
DL 2709 leaves 21 h 20 after UA 2196 arrives on the timetable: more than half a day, so not a connection we count.