UA 2367 then AC 5432 at San Francisco
Denver → San Francisco → Chicago O'Hare
Timetable, San Francisco time
06:48UA 2367 from Denver at the gatealso AC 3067
22:45AC 5432 to Chicago O'Hare leaves the gatealso VA 8105
15 h 57 apart on the timetable
AC 5432 leaves 15 h 57 after UA 2367 arrives on the timetable: more than half a day, so not a connection we count.