UA 1550 then OO 377 at San Francisco
Detroit → San Francisco → Salt Lake City
Timetable, San Francisco time
10:46UA 1550 from Detroit at the gatealso NZ 2888
10:38OO 377 to Salt Lake City leaves the gate
23 h 52 apart on the timetable, overnight
OO 377 leaves 23 h 52 after UA 1550 arrives on the timetable: more than half a day, so not a connection we count.