UA 2476 then DL 751 at Denver
San Diego → Denver → New York LaGuardia
Timetable, Denver time
12:10UA 2476 from San Diego at the gate
11:20DL 751 to New York LaGuardia leaves the gate
23 h 10 apart on the timetable, overnight
DL 751 leaves 23 h 10 after UA 2476 arrives on the timetable: more than half a day, so not a connection we count.