DL 3869 then UA 3611 at Detroit
Elmira → Detroit → Newark
Timetable, Detroit time
15:11DL 3869 from Elmira at the gate
15:05UA 3611 to Newark leaves the gate
23 h 54 apart on the timetable, overnight
UA 3611 leaves 23 h 54 after DL 3869 arrives on the timetable: more than half a day, so not a connection we count.