WN 864 then DL 1648 at Denver
Burbank → Denver → Detroit
Timetable, Denver time
16:35WN 864 from Burbank at the gate
16:15DL 1648 to Detroit leaves the gate
23 h 40 apart on the timetable, overnight
DL 1648 leaves 23 h 40 after WN 864 arrives on the timetable: more than half a day, so not a connection we count.