FR 6815 then BA 1365 at Manchester
Madrid → Manchester → London Heathrow
Timetable, Manchester time
07:50FR 6815 from Madrid at the gate
11:55BA 1365 to London Heathrow leaves the gate
4 h 05 apart on the timetable
The last days
FR 6815 and BA 1365 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.