UA 6048 then DL 972 at LAX
San Francisco → Los Angeles → New York JFK
Timetable, Los Angeles time
10:33UA 6048 from San Francisco at the gate
08:25DL 972 to New York JFK leaves the gate
21 h 52 apart on the timetable, overnight
DL 972 leaves 21 h 52 after UA 6048 arrives on the timetable: more than half a day, so not a connection we count.