UA 2809 then AA 3023 at DFW
Chicago O'Hare → Dallas-Fort Worth → New York LaGuardia
Timetable, Dallas-Fort Worth time
13:31UA 2809 from Chicago O'Hare at the gate
08:26AA 3023 to New York LaGuardia leaves the gate
18 h 55 apart on the timetable, overnight
AA 3023 leaves 18 h 55 after UA 2809 arrives on the timetable: more than half a day, so not a connection we count.