QR 3720 then U2 8056 at Barcelona
Firenze → Barcelona → London Gatwick
Timetable, Barcelona time
11:35QR 3720 from Firenze at the gate
14:45U2 8056 to London Gatwick leaves the gate
3 h 10 apart on the timetable
The last days
QR 3720 and U2 8056 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.