UA 2179 then AC 4370 at San Francisco
Austin → San Francisco → Reno
Timetable, San Francisco time
22:00UA 2179 from Austin at the gatealso AC 3510
20:40AC 4370 to Reno leaves the gate
22 h 40 apart on the timetable, overnight
AC 4370 leaves 22 h 40 after UA 2179 arrives on the timetable: more than half a day, so not a connection we count.