LL 5501 then BA 475 at Barcelona
Vigo → Barcelona → London Heathrow
Timetable, Barcelona time
01:40LL 5501 from Vigo at the gate
11:45BA 475 to London Heathrow leaves the gatealso IB 3658, LA 5488, AA 6814, VY 9553
10 h 05 apart on the timetable
The last days
LL 5501 and BA 475 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.