DL 1978 then DL 9963 at Atlanta
Santa Clara → Atlanta → Queretaro
Timetable, Atlanta time
19:13DL 1978 from Santa Clara at the gate
09:30DL 9963 to Queretaro leaves the gate
14 h 17 apart on the timetable, overnight
DL 9963 leaves 14 h 17 after DL 1978 arrives on the timetable: more than half a day, so not a connection we count.