F9 3990 then DL 5136 at Detroit
Dallas-Fort Worth → Detroit → Montréal
Timetable, Detroit time
21:43F9 3990 from Dallas-Fort Worth at the gate
21:34DL 5136 to Montréal leaves the gate
23 h 51 apart on the timetable, overnight
DL 5136 leaves 23 h 51 after F9 3990 arrives on the timetable: more than half a day, so not a connection we count.