AC 3997 then AC 4370 at San Francisco
Boise → San Francisco → Reno
Timetable, San Francisco time
09:23AC 3997 from Boise at the gatealso UA 4639
22:35AC 4370 to Reno leaves the gate
13 h 12 apart on the timetable
AC 4370 leaves 13 h 12 after AC 3997 arrives on the timetable: more than half a day, so not a connection we count.