QR 3711 then TK 1854 at Barcelona
Mahón → Barcelona → Istanbul
Timetable, Barcelona time
14:40QR 3711 from Mahón at the gate
12:20TK 1854 to Istanbul leaves the gate
21 h 40 apart on the timetable, overnight
TK 1854 leaves 21 h 40 after QR 3711 arrives on the timetable: more than half a day, so not a connection we count.