AA 2856 then AA 1680 at DFW
Spokane → Dallas-Fort Worth → Des Moines
Timetable, Dallas-Fort Worth time
18:40AA 2856 from Spokane at the gate
12:49AA 1680 to Des Moines leaves the gate
18 h 09 apart on the timetable, overnight
AA 1680 leaves 18 h 09 after AA 2856 arrives on the timetable: more than half a day, so not a connection we count.