AS 315 then DL 5126 at Detroit
Seattle → Detroit → Grand Rapids
Timetable, Detroit time
05:40AS 315 from Seattle at the gate
18:00DL 5126 to Grand Rapids leaves the gate
12 h 20 apart on the timetable
DL 5126 leaves 12 h 20 after AS 315 arrives on the timetable: more than half a day, so not a connection we count.