UA 1753 then AA 3023 at DFW
Newark → Dallas-Fort Worth → New York LaGuardia
Timetable, Dallas-Fort Worth time
13:34UA 1753 from Newark at the gate
08:26AA 3023 to New York LaGuardia leaves the gate
18 h 52 apart on the timetable, overnight
AA 3023 leaves 18 h 52 after UA 1753 arrives on the timetable: more than half a day, so not a connection we count.