FR 4596 then LL 5026 at Barcelona
Porto → Barcelona → Brussels
Timetable, Barcelona time
00:50FR 4596 from Porto at the gate
19:00LL 5026 to Brussels leaves the gate
18 h 10 apart on the timetable
LL 5026 leaves 18 h 10 after FR 4596 arrives on the timetable: more than half a day, so not a connection we count.