DL 1271 then AA 3357 at Atlanta
Fort Lauderdale → Atlanta → Washington National
Timetable, Atlanta time
14:35DL 1271 from Fort Lauderdale at the gate
14:33AA 3357 to Washington National leaves the gate
23 h 58 apart on the timetable, overnight
AA 3357 leaves 23 h 58 after DL 1271 arrives on the timetable: more than half a day, so not a connection we count.