AA 1637 then AA 856 at O'Hare
Washington National → Chicago → Fort Lauderdale
Timetable, Chicago time
17:00AA 1637 from Washington National at the gate
19:23AA 856 to Fort Lauderdale leaves the gate
2 h 23 apart on the timetable
The last days
AA 1637 and AA 856 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.