DL 752 then F9 4130 at LAX
New York JFK → Los Angeles → Salt Lake City
Timetable, Los Angeles time
00:16DL 752 from New York JFK at the gate
18:44F9 4130 to Salt Lake City leaves the gate
18 h 28 apart on the timetable
F9 4130 leaves 18 h 28 after DL 752 arrives on the timetable: more than half a day, so not a connection we count.