UA 2344 then UA 3752 at Dulles
Austin → Washington → Lafayette Purdue University
Timetable, Washington time
16:34UA 2344 from Austin at the gate
12:05UA 3752 to Lafayette Purdue University leaves the gate
19 h 31 apart on the timetable, overnight
UA 3752 leaves 19 h 31 after UA 2344 arrives on the timetable: more than half a day, so not a connection we count.