DL 1091 then AS 40 at San Francisco
Salt Lake City → San Francisco → New York JFK
Timetable, San Francisco time
23:55DL 1091 from Salt Lake City at the gatealso VS 4542
23:00AS 40 to New York JFK leaves the gatealso QR 2080, QR 2137
23 h 05 apart on the timetable, overnight
AS 40 leaves 23 h 05 after DL 1091 arrives on the timetable: more than half a day, so not a connection we count.