DL 2709 then UA 753 at Houston
Atlanta → Houston → Grand Cayman
Timetable, Houston time
13:23DL 2709 from Atlanta at the gate
12:34UA 753 to Grand Cayman leaves the gate
23 h 11 apart on the timetable, overnight
UA 753 leaves 23 h 11 after DL 2709 arrives on the timetable: more than half a day, so not a connection we count.