AA 3513 then AA 6238 at DFW
Fort Smith → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
11:27AA 3513 from Fort Smith at the gate
08:25AA 6238 to Amarillo leaves the gate
20 h 58 apart on the timetable, overnight
AA 6238 leaves 20 h 58 after AA 3513 arrives on the timetable: more than half a day, so not a connection we count.