AA 2454 then AA 4040 at DFW
Fort Lauderdale → Dallas-Fort Worth → Brownsville
Timetable, Dallas-Fort Worth time
14:02AA 2454 from Fort Lauderdale at the gate
13:27AA 4040 to Brownsville leaves the gate
23 h 25 apart on the timetable, overnight
AA 4040 leaves 23 h 25 after AA 2454 arrives on the timetable: more than half a day, so not a connection we count.