WN 3243 then DL 836 at Atlanta
Austin → Atlanta → Phoenix
Timetable, Atlanta time
18:00WN 3243 from Austin at the gate
16:25DL 836 to Phoenix leaves the gate
22 h 25 apart on the timetable, overnight
DL 836 leaves 22 h 25 after WN 3243 arrives on the timetable: more than half a day, so not a connection we count.