BA 1393 then TP 1367 at Heathrow
Belfast City → London → Lisbon
Timetable, London time
10:40BA 1393 from Belfast City at the gate
12:25TP 1367 to Lisbon leaves the gate
1 h 45 apart on the timetable
The last days
BA 1393 and TP 1367 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.