DL 662 then DL 1734 at Atlanta
Portland (Oregon) → Atlanta → Toronto
Timetable, Atlanta time
14:15DL 662 from Portland (Oregon) at the gate
14:07DL 1734 to Toronto leaves the gate
23 h 52 apart on the timetable, overnight
DL 1734 leaves 23 h 52 after DL 662 arrives on the timetable: more than half a day, so not a connection we count.