BA 697 then BA 1458 at Heathrow
Vienna → London → Edinburgh
Timetable, London time
17:35BA 697 from Vienna at the gate
18:10BA 1458 to Edinburgh leaves the gate
35 min apart on the timetable
The last days
BA 697 and BA 1458 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.