BA 1098 then EW 8463 at Heathrow
Toronto → London → Berlin
Timetable, London time
10:30BA 1098 from Toronto at the gate
14:35EW 8463 to Berlin leaves the gate
4 h 05 apart on the timetable
The last days
BA 1098 and EW 8463 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.