BT 877 then LY 9001 at Barcelona
Tallinn → Barcelona → Lisbon
Timetable, Barcelona time
10:30BT 877 from Tallinn at the gate
10:55LY 9001 to Lisbon leaves the gate
25 min apart on the timetable
The last days
BT 877 and LY 9001 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.