UA 1970 then DL 940 at San Francisco
Cleveland → San Francisco → Detroit
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
13:30DL 940 to Detroit leaves the gatealso KL 7105, KL 7861
15 h 45 apart on the timetable, overnight
DL 940 leaves 15 h 45 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.