AC 834 then QR 3538 at Madrid
Montréal → Madrid → Barcelona
Timetable, Madrid time
08:00AC 834 from Montréal at the gate
18:30QR 3538 to Barcelona leaves the gate
10 h 30 apart on the timetable
The last days
AC 834 and QR 3538 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.