AA 2856 then DL 1709 at DFW
Spokane → Dallas-Fort Worth → Boston
Timetable, Dallas-Fort Worth time
18:40AA 2856 from Spokane at the gate
13:10DL 1709 to Boston leaves the gate
18 h 30 apart on the timetable, overnight
DL 1709 leaves 18 h 30 after AA 2856 arrives on the timetable: more than half a day, so not a connection we count.