UA 4477 then DL 2709 at Houston
Northwest Arkansas → Houston → Atlanta
Timetable, Houston time
08:28UA 4477 from Northwest Arkansas at the gate
08:05DL 2709 to Atlanta leaves the gate
23 h 37 apart on the timetable, overnight
DL 2709 leaves 23 h 37 after UA 4477 arrives on the timetable: more than half a day, so not a connection we count.