B6 615 then AC 4370 at San Francisco
New York JFK → San Francisco → Reno
Timetable, San Francisco time
21:37B6 615 from New York JFK at the gatealso EY 8389
18:55AC 4370 to Reno leaves the gate
21 h 18 apart on the timetable, overnight
AC 4370 leaves 21 h 18 after B6 615 arrives on the timetable: more than half a day, so not a connection we count.