EC 7681 then TK 1854 at Barcelona
Lisbon → Barcelona → Istanbul
Timetable, Barcelona time
21:20EC 7681 from Lisbon at the gate
12:20TK 1854 to Istanbul leaves the gate
15 h apart on the timetable, overnight
TK 1854 leaves 15 h after EC 7681 arrives on the timetable: more than half a day, so not a connection we count.