UA 1249 then DL 2709 at Houston
Tocumen → Houston → Atlanta
Timetable, Houston time
12:15UA 1249 from Tocumen at the gate
08:05DL 2709 to Atlanta leaves the gate
19 h 50 apart on the timetable, overnight
DL 2709 leaves 19 h 50 after UA 1249 arrives on the timetable: more than half a day, so not a connection we count.