QR 3671 then IB 406 at Barcelona
Rome → Barcelona → Madrid
Timetable, Barcelona time
01:25QR 3671 from Rome at the gatealso IB 5773, LL 5773, VY 6021
09:45IB 406 to Madrid leaves the gatealso IB 406S, LL 3006, VY 5038, LA 5436, AV 6001, QR 6850, BA 7079, AA 8680
8 h 20 apart on the timetable
The last days
QR 3671 and IB 406 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.