I2 1564 then U2 8020 at Madrid
Tenerife North → Madrid → London Gatwick
Timetable, Madrid time
14:20I2 1564 from Tenerife North at the gatealso IB 1564, VY 5500, AA 8570
16:45U2 8020 to London Gatwick leaves the gate
2 h 25 apart on the timetable
The last days
I2 1564 and U2 8020 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.