AF 2421 then AA 3021 at JFK
Fort Lauderdale → New York → Miami
Timetable, New York time
14:17AF 2421 from Fort Lauderdale at the gate
19:00AA 3021 to Miami leaves the gate
4 h 43 apart on the timetable
The last days
AF 2421 and AA 3021 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.