AA 5510 then B6 1697 at Atlanta
Washington National → Atlanta → Fort Lauderdale
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
21:30B6 1697 to Fort Lauderdale leaves the gate
22 h 07 apart on the timetable, overnight
B6 1697 leaves 22 h 07 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.