LS 231 then QR 3504 at Barcelona
Leeds → Barcelona → Ibiza
Timetable, Barcelona time
11:15LS 231 from Leeds at the gate
16:35QR 3504 to Ibiza leaves the gate
5 h 20 apart on the timetable
The last days
LS 231 and QR 3504 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.