UA 2603 then B6 316 at San Francisco
Toronto → San Francisco → New York JFK
Timetable, San Francisco time
09:29UA 2603 from Toronto at the gatealso AC 4105
08:05B6 316 to New York JFK leaves the gatealso LO 5774, EY 8328, AT 9559
22 h 36 apart on the timetable, overnight
B6 316 leaves 22 h 36 after UA 2603 arrives on the timetable: more than half a day, so not a connection we count.