X3 6579 then BA 949 at Munich
Djerba → Munich → London Heathrow
Timetable, Munich time
11:35X3 6579 from Djerba at the gate
14:15BA 949 to London Heathrow leaves the gate
2 h 40 apart on the timetable
Munich’s board gives a departure time for only about 22% of its flights, so many days show no gate time.
The last days
X3 6579 and BA 949 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.