DL 5244 then DL 9963 at Atlanta
Huntsville → Atlanta → Queretaro
Timetable, Atlanta time
17:05DL 5244 from Huntsville at the gate
09:30DL 9963 to Queretaro leaves the gate
16 h 25 apart on the timetable, overnight
DL 9963 leaves 16 h 25 after DL 5244 arrives on the timetable: more than half a day, so not a connection we count.