UA 1341 then AS 1451 at San Francisco
Detroit → San Francisco → San Diego
Timetable, San Francisco time
19:31UA 1341 from Detroit at the gatealso OZ 9538
14:44AS 1451 to San Diego leaves the gatealso QR 2084, AA 9340
19 h 13 apart on the timetable, overnight
AS 1451 leaves 19 h 13 after UA 1341 arrives on the timetable: more than half a day, so not a connection we count.