IB 5133 then BA 487 at Barcelona
Alicante → Barcelona → London Heathrow
Timetable, Barcelona time
15:40IB 5133 from Alicante at the gate
19:20BA 487 to London Heathrow leaves the gate
3 h 40 apart on the timetable
The last days
IB 5133 and BA 487 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.