UA 3772 then AA 276 at San Francisco
Las Vegas → San Francisco → New York JFK
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
21:44AA 276 to New York JFK leaves the gatealso QF 3177, BA 5606, QR 9494
23 h 39 apart on the timetable, overnight
AA 276 leaves 23 h 39 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.