FR 2540 then FR 5995 at Madrid
Bucharest → Madrid → London Stansted
Timetable, Madrid time
08:45FR 2540 from Bucharest at the gate
10:05FR 5995 to London Stansted leaves the gate
1 h 20 apart on the timetable
The last days
FR 2540 and FR 5995 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.