UA 2471 then AA 2611 at DFW
Washington → Dallas-Fort Worth → Queretaro
Timetable, Dallas-Fort Worth time
11:19UA 2471 from Washington at the gate
08:50AA 2611 to Queretaro leaves the gate
21 h 31 apart on the timetable, overnight
AA 2611 leaves 21 h 31 after UA 2471 arrives on the timetable: more than half a day, so not a connection we count.