FR 3793 then FR 8231 at Barcelona
Birmingham (UK) → Barcelona → London Stansted
Timetable, Barcelona time
16:45FR 3793 from Birmingham (UK) at the gate
06:20FR 8231 to London Stansted leaves the gate
13 h 35 apart on the timetable, overnight
FR 8231 leaves 13 h 35 after FR 3793 arrives on the timetable: more than half a day, so not a connection we count.