FR 8614 then FR 8215 at Barcelona
Seville → Barcelona → London Stansted
Timetable, Barcelona time
14:50FR 8614 from Seville at the gate
13:15FR 8215 to London Stansted leaves the gate
22 h 25 apart on the timetable, overnight
FR 8215 leaves 22 h 25 after FR 8614 arrives on the timetable: more than half a day, so not a connection we count.