LG 3591 then FR 3049 at Barcelona
Luxembourg → Barcelona → Krakow
Timetable, Barcelona time
13:15LG 3591 from Luxembourg at the gate
06:00FR 3049 to Krakow leaves the gate
16 h 45 apart on the timetable, overnight
FR 3049 leaves 16 h 45 after LG 3591 arrives on the timetable: more than half a day, so not a connection we count.