AA 2856 then AA 1507 at DFW
Spokane → Dallas-Fort Worth → Cancún
Timetable, Dallas-Fort Worth time
18:40AA 2856 from Spokane at the gate
13:44AA 1507 to Cancún leaves the gate
19 h 04 apart on the timetable, overnight
AA 1507 leaves 19 h 04 after AA 2856 arrives on the timetable: more than half a day, so not a connection we count.