DL 1091 then UA 368 at San Francisco
Salt Lake City → San Francisco → Chicago O'Hare
Timetable, San Francisco time
23:59DL 1091 from Salt Lake City at the gatealso VS 4542
23:30UA 368 to Chicago O'Hare leaves the gatealso AC 4372, NZ 9307
23 h 31 apart on the timetable, overnight
UA 368 leaves 23 h 31 after DL 1091 arrives on the timetable: more than half a day, so not a connection we count.