U2 7926 then U2 8684 at Schiphol
Prague → Amsterdam → London Gatwick
Timetable, Amsterdam time
11:00U2 7926 from Prague at the gate
17:40U2 8684 to London Gatwick leaves the gate
6 h 40 apart on the timetable
The last days
U2 7926 and U2 8684 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.