DL 466 then DL 9963 at Atlanta
Las Vegas → Atlanta → Queretaro
Timetable, Atlanta time
20:24DL 466 from Las Vegas at the gate
09:30DL 9963 to Queretaro leaves the gate
13 h 06 apart on the timetable, overnight
DL 9963 leaves 13 h 06 after DL 466 arrives on the timetable: more than half a day, so not a connection we count.