UA 2105 then DL 2709 at Houston
New Orleans → Houston → Atlanta
Timetable, Houston time
10:28UA 2105 from New Orleans at the gate
08:05DL 2709 to Atlanta leaves the gate
21 h 37 apart on the timetable, overnight
DL 2709 leaves 21 h 37 after UA 2105 arrives on the timetable: more than half a day, so not a connection we count.