AA 873 then 7L 4862 at Atlanta
Chicago O'Hare → Atlanta → Houston
Timetable, Atlanta time
11:09AA 873 from Chicago O'Hare at the gate
11:007L 4862 to Houston leaves the gate
23 h 51 apart on the timetable, overnight
7L 4862 leaves 23 h 51 after AA 873 arrives on the timetable: more than half a day, so not a connection we count.