BA 647 then BA 105 at Heathrow
Corfu → London → Dubai
Timetable, London time
18:35BA 647 from Corfu at the gate
20:05BA 105 to Dubai leaves the gate
1 h 30 apart on the timetable
The last days
BA 647 and BA 105 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.