UA 5192 then DL 2709 at Houston
Oklahoma City → Houston → Atlanta
Timetable, Houston time
09:20UA 5192 from Oklahoma City at the gate
08:05DL 2709 to Atlanta leaves the gate
22 h 45 apart on the timetable, overnight
DL 2709 leaves 22 h 45 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.