DY 1718 then AA 8727 at Madrid
Oslo → Madrid → Barcelona
Timetable, Madrid time
11:30DY 1718 from Oslo at the gate
19:10AA 8727 to Barcelona leaves the gate
7 h 40 apart on the timetable
The last days
DY 1718 and AA 8727 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.