UA 2471 then AA 3023 at DFW
Washington → Dallas-Fort Worth → New York LaGuardia
Timetable, Dallas-Fort Worth time
11:19UA 2471 from Washington at the gate
08:26AA 3023 to New York LaGuardia leaves the gate
21 h 07 apart on the timetable, overnight
AA 3023 leaves 21 h 07 after UA 2471 arrives on the timetable: more than half a day, so not a connection we count.