AA 1869 then AA 2609 at Miami
Houston → Miami → Atlanta
Timetable, Miami time
20:35AA 1869 from Houston at the gate
18:07AA 2609 to Atlanta leaves the gate
21 h 32 apart on the timetable, overnight
AA 2609 leaves 21 h 32 after AA 1869 arrives on the timetable: more than half a day, so not a connection we count.