QR 3774 then BT 878 at Barcelona
Torino → Barcelona → Tallinn
Timetable, Barcelona time
20:25QR 3774 from Torino at the gatealso IB 5811, LL 5811, VY 6129
11:25BT 878 to Tallinn leaves the gate
15 h apart on the timetable, overnight
BT 878 leaves 15 h after QR 3774 arrives on the timetable: more than half a day, so not a connection we count.