AF 49 then BA 309 at Charles de Gaulle
New York JFK → Paris → London Heathrow
Timetable, Paris time
12:40AF 49 from New York JFK at the gate
15:10BA 309 to London Heathrow leaves the gate
2 h 30 apart on the timetable
Charles de Gaulle’s board gives an arrival time for only about 51% of its flights, so many days show no gate time.
The last days
AF 49 and BA 309 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.