EC 4795 then VY 1015 at Madrid
Nantes → Madrid → Barcelona
Timetable, Madrid time
12:10EC 4795 from Nantes at the gate
18:35VY 1015 to Barcelona leaves the gate
6 h 25 apart on the timetable
The last days
EC 4795 and VY 1015 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.