AA 1680 then AA 3351 at DFW
Des Moines → Dallas-Fort Worth → Houston Hobby
Timetable, Dallas-Fort Worth time
17:40AA 1680 from Des Moines at the gate
17:31AA 3351 to Houston Hobby leaves the gate
23 h 51 apart on the timetable, overnight
AA 3351 leaves 23 h 51 after AA 1680 arrives on the timetable: more than half a day, so not a connection we count.