FR 3801 then TK 1854 at Barcelona
Birmingham (UK) → Barcelona → Istanbul
Timetable, Barcelona time
15:35FR 3801 from Birmingham (UK) at the gate
12:20TK 1854 to Istanbul leaves the gate
20 h 45 apart on the timetable, overnight
TK 1854 leaves 20 h 45 after FR 3801 arrives on the timetable: more than half a day, so not a connection we count.