AA 2357 then DL 2709 at Houston
Phoenix → Houston → Atlanta
Timetable, Houston time
13:31AA 2357 from Phoenix at the gate
08:05DL 2709 to Atlanta leaves the gate
18 h 34 apart on the timetable, overnight
DL 2709 leaves 18 h 34 after AA 2357 arrives on the timetable: more than half a day, so not a connection we count.