VY 1011 then U2 7694 at Barcelona
Madrid → Barcelona → Lisbon
Timetable, Barcelona time
11:25VY 1011 from Madrid at the gate
15:30U2 7694 to Lisbon leaves the gate
4 h 05 apart on the timetable
The last days
VY 1011 and U2 7694 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.