AA 3453 then AA 6238 at DFW
Fort Smith → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
18:31AA 3453 from Fort Smith at the gate
08:25AA 6238 to Amarillo leaves the gate
13 h 54 apart on the timetable, overnight
AA 6238 leaves 13 h 54 after AA 3453 arrives on the timetable: more than half a day, so not a connection we count.