DL 3876 then WN 1749 at Denver
Austin → Denver → Dallas
Timetable, Denver time
09:02DL 3876 from Austin at the gate
05:35WN 1749 to Dallas leaves the gate
20 h 33 apart on the timetable, overnight
WN 1749 leaves 20 h 33 after DL 3876 arrives on the timetable: more than half a day, so not a connection we count.