U2 3297 then IB 630 at Zurich
Edinburgh → Zurich → Madrid
Timetable, Zurich time
10:40U2 3297 from Edinburgh at the gate
14:55IB 630 to Madrid leaves the gate
4 h 15 apart on the timetable
The last days
U2 3297 and IB 630 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.