UA 1389 then AC 4370 at San Francisco
Denver → San Francisco → Reno
Timetable, San Francisco time
21:10UA 1389 from Denver at the gatealso AC 5331, OZ 6351, VA 8352, NZ 9069
20:40AC 4370 to Reno leaves the gate
23 h 30 apart on the timetable, overnight
AC 4370 leaves 23 h 30 after UA 1389 arrives on the timetable: more than half a day, so not a connection we count.