IB 5093 then FR 8231 at Barcelona
Porto → Barcelona → London Stansted
Timetable, Barcelona time
17:20IB 5093 from Porto at the gate
07:30FR 8231 to London Stansted leaves the gate
14 h 10 apart on the timetable, overnight
FR 8231 leaves 14 h 10 after IB 5093 arrives on the timetable: more than half a day, so not a connection we count.