UA 6126 then DL 2709 at Houston
Midland → Houston → Atlanta
Timetable, Houston time
10:08UA 6126 from Midland at the gate
08:05DL 2709 to Atlanta leaves the gate
21 h 57 apart on the timetable, overnight
DL 2709 leaves 21 h 57 after UA 6126 arrives on the timetable: more than half a day, so not a connection we count.