DL 873 then AA 2414 at DFW
New York LaGuardia → Dallas-Fort Worth → Washington
Timetable, Dallas-Fort Worth time
10:23DL 873 from New York LaGuardia at the gate
09:40AA 2414 to Washington leaves the gate
23 h 17 apart on the timetable, overnight
AA 2414 leaves 23 h 17 after DL 873 arrives on the timetable: more than half a day, so not a connection we count.