WN 562 then DL 3876 at Denver
Oakland → Denver → Austin
Timetable, Denver time
10:00WN 562 from Oakland at the gate
09:42DL 3876 to Austin leaves the gate
23 h 42 apart on the timetable, overnight
DL 3876 leaves 23 h 42 after WN 562 arrives on the timetable: more than half a day, so not a connection we count.