W6 7021 then FR 9811 at Barcelona
Bratislava → Barcelona → London Stansted
Timetable, Barcelona time
11:30W6 7021 from Bratislava at the gate
07:55FR 9811 to London Stansted leaves the gate
20 h 25 apart on the timetable, overnight
FR 9811 leaves 20 h 25 after W6 7021 arrives on the timetable: more than half a day, so not a connection we count.