AA 5782 then DL 1 at JFK
Pittsburgh → New York → London Heathrow
Timetable, New York time
08:23AA 5782 from Pittsburgh at the gate
20:00DL 1 to London Heathrow leaves the gate
11 h 37 apart on the timetable
The last days
AA 5782 and DL 1 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.