EC 7682 then TP 9016 at Lisbon
Barcelona → Lisbon → London Heathrow
Timetable, Lisbon time
11:10EC 7682 from Barcelona at the gate
15:05TP 9016 to London Heathrow leaves the gate
3 h 55 apart on the timetable
The last days
EC 7682 and TP 9016 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.