7L 1312 then DL 2039 at O'Hare
Anchorage → Chicago → Detroit
Timetable, Chicago time
10:157L 1312 from Anchorage at the gate
07:05DL 2039 to Detroit leaves the gate
20 h 50 apart on the timetable, overnight
DL 2039 leaves 20 h 50 after 7L 1312 arrives on the timetable: more than half a day, so not a connection we count.