IB 5425 then IB 5434 at Barcelona
London Heathrow → Barcelona → Paris Orly
Timetable, Barcelona time
00:05IB 5425 from London Heathrow at the gatealso LL 5425, VY 7643, BA 8085
09:45IB 5434 to Paris Orly leaves the gatealso LL 5434, VY 8008
9 h 40 apart on the timetable
The last days
IB 5425 and IB 5434 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.