UA 2754 then UA 1780 at San Francisco
Minneapolis → San Francisco → Ontario
Timetable, San Francisco time
19:33UA 2754 from Minneapolis at the gatealso OZ 6312, VA 8253, NZ 9438
18:50UA 1780 to Ontario leaves the gatealso AC 4423, AC 4548
23 h 17 apart on the timetable, overnight
UA 1780 leaves 23 h 17 after UA 2754 arrives on the timetable: more than half a day, so not a connection we count.