FR 835 then FR 9015 at Barcelona
Vilnius → Barcelona → London Stansted
Timetable, Barcelona time
10:30FR 835 from Vilnius at the gate
18:05FR 9015 to London Stansted leaves the gate
7 h 35 apart on the timetable
The last days
FR 835 and FR 9015 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.