DL 876 then DL 4688 at Detroit
Santa Ana → Detroit → Chicago Midway
Timetable, Detroit time
19:40DL 876 from Santa Ana at the gate
12:30DL 4688 to Chicago Midway leaves the gate
16 h 50 apart on the timetable, overnight
DL 4688 leaves 16 h 50 after DL 876 arrives on the timetable: more than half a day, so not a connection we count.