DL 5037 then UA 3752 at Dulles
Detroit → Washington → Lafayette Purdue University
Timetable, Washington time
16:16DL 5037 from Detroit at the gate
12:05UA 3752 to Lafayette Purdue University leaves the gate
19 h 49 apart on the timetable, overnight
UA 3752 leaves 19 h 49 after DL 5037 arrives on the timetable: more than half a day, so not a connection we count.