DL 3080 then DL 9963 at Atlanta
Harrisburg → Atlanta → Queretaro
Timetable, Atlanta time
17:01DL 3080 from Harrisburg at the gate
09:30DL 9963 to Queretaro leaves the gate
16 h 29 apart on the timetable, overnight
DL 9963 leaves 16 h 29 after DL 3080 arrives on the timetable: more than half a day, so not a connection we count.