AA 3453 then AA 1355 at DFW
Fort Smith → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
18:31AA 3453 from Fort Smith at the gate
13:11AA 1355 to Oklahoma City leaves the gate
18 h 40 apart on the timetable, overnight
AA 1355 leaves 18 h 40 after AA 3453 arrives on the timetable: more than half a day, so not a connection we count.