LO 437 then FR 8394 at Barcelona
Warsaw Chopin → Barcelona → Budapest
Timetable, Barcelona time
17:55LO 437 from Warsaw Chopin at the gate
09:15FR 8394 to Budapest leaves the gate
15 h 20 apart on the timetable, overnight
FR 8394 leaves 15 h 20 after LO 437 arrives on the timetable: more than half a day, so not a connection we count.