UA 1973 then B6 316 at San Francisco
New Orleans → San Francisco → New York JFK
Timetable, San Francisco time
10:53UA 1973 from New Orleans at the gatealso NZ 2158, VA 8477
09:06B6 316 to New York JFK leaves the gatealso EY 8328, JU 8514, AT 9559
22 h 13 apart on the timetable, overnight
B6 316 leaves 22 h 13 after UA 1973 arrives on the timetable: more than half a day, so not a connection we count.