WN 4082 then DL 1434 at LAX
St Louis → Los Angeles → Salt Lake City
Timetable, Los Angeles time
23:55WN 4082 from St Louis at the gate
12:33DL 1434 to Salt Lake City leaves the gate
12 h 38 apart on the timetable, overnight
DL 1434 leaves 12 h 38 after WN 4082 arrives on the timetable: more than half a day, so not a connection we count.