DL 1 then TP 9017 at Heathrow
New York JFK → London → Lisbon
Timetable, London time
08:05DL 1 from New York JFK at the gate
10:45TP 9017 to Lisbon leaves the gate
2 h 40 apart on the timetable
The last days
DL 1 and TP 9017 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.