AA 3453 then AA 2753 at DFW
Fort Smith → Dallas-Fort Worth → Valparaiso
Timetable, Dallas-Fort Worth time
18:31AA 3453 from Fort Smith at the gate
16:51AA 2753 to Valparaiso leaves the gate
22 h 20 apart on the timetable, overnight
AA 2753 leaves 22 h 20 after AA 3453 arrives on the timetable: more than half a day, so not a connection we count.