DL 387 then DL 3882 at Salt Lake City
Atlanta → Salt Lake City → Oklahoma City
Timetable, Salt Lake City time
12:14DL 387 from Atlanta at the gate
09:30DL 3882 to Oklahoma City leaves the gate
21 h 16 apart on the timetable, overnight
DL 3882 leaves 21 h 16 after DL 387 arrives on the timetable: more than half a day, so not a connection we count.