TK 1931 then BA 744 at Heathrow
Istanbul → London → Geneva
Timetable, London time
14:40TK 1931 from Istanbul at the gate
16:20BA 744 to Geneva leaves the gate
1 h 40 apart on the timetable
The last days
TK 1931 and BA 744 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.