TK 1855 then QR 3771 at Barcelona
Istanbul → Barcelona → Basel
Timetable, Barcelona time
17:15TK 1855 from Istanbul at the gate
08:45QR 3771 to Basel leaves the gate
15 h 30 apart on the timetable, overnight
QR 3771 leaves 15 h 30 after TK 1855 arrives on the timetable: more than half a day, so not a connection we count.