DL 1492 then DL 1464 at Salt Lake City
St Louis → Salt Lake City → Kalispell
Timetable, Salt Lake City time
21:18DL 1492 from St Louis at the gate
20:59DL 1464 to Kalispell leaves the gate
23 h 41 apart on the timetable, overnight
DL 1464 leaves 23 h 41 after DL 1492 arrives on the timetable: more than half a day, so not a connection we count.