DL 3747 then DL 4279 at Salt Lake City
Sacramento → Salt Lake City → St George
Timetable, Salt Lake City time
22:07DL 3747 from Sacramento at the gate
20:45DL 4279 to St George leaves the gate
22 h 38 apart on the timetable, overnight
DL 4279 leaves 22 h 38 after DL 3747 arrives on the timetable: more than half a day, so not a connection we count.