DL 9941 then DL 1131 at Atlanta
Queretaro → Atlanta → Houston
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
16:12DL 1131 to Houston leaves the gate
20 h 29 apart on the timetable, overnight
DL 1131 leaves 20 h 29 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.