QR 137 then FR 3039 at Barcelona
Doha → Barcelona → Prague
Timetable, Barcelona time
07:05QR 137 from Doha at the gate
21:50FR 3039 to Prague leaves the gate
14 h 45 apart on the timetable
FR 3039 leaves 14 h 45 after QR 137 arrives on the timetable: more than half a day, so not a connection we count.