AA 2856 then AA 3637 at DFW
Spokane → Dallas-Fort Worth → Lubbock
Timetable, Dallas-Fort Worth time
18:40AA 2856 from Spokane at the gate
10:50AA 3637 to Lubbock leaves the gate
16 h 10 apart on the timetable, overnight
AA 3637 leaves 16 h 10 after AA 2856 arrives on the timetable: more than half a day, so not a connection we count.