DL 873 then UA 3681 at DFW
New York LaGuardia → Dallas-Fort Worth → Newark
Timetable, Dallas-Fort Worth time
20:23DL 873 from New York LaGuardia at the gate
16:48UA 3681 to Newark leaves the gate
20 h 25 apart on the timetable, overnight
UA 3681 leaves 20 h 25 after DL 873 arrives on the timetable: more than half a day, so not a connection we count.