OU 374 then FR 2507 at Barcelona
Zagreb → Barcelona → Cologne
Timetable, Barcelona time
17:40OU 374 from Zagreb at the gatealso TP 6889
06:20FR 2507 to Cologne leaves the gate
12 h 40 apart on the timetable, overnight
FR 2507 leaves 12 h 40 after OU 374 arrives on the timetable: more than half a day, so not a connection we count.