LL 5423 then FR 3039 at Barcelona
London Heathrow → Barcelona → Prague
Timetable, Barcelona time
13:10LL 5423 from London Heathrow at the gate
11:40FR 3039 to Prague leaves the gate
22 h 30 apart on the timetable, overnight
FR 3039 leaves 22 h 30 after LL 5423 arrives on the timetable: more than half a day, so not a connection we count.