AC 4121 then DL 1088 at San Francisco
Ontario → San Francisco → Salt Lake City
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
17:19DL 1088 to Salt Lake City leaves the gatealso AF 2673, VS 4531, WS 7673
23 h 29 apart on the timetable, overnight
DL 1088 leaves 23 h 29 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.