EI 166 then KL 9936 at Heathrow
Dublin → London → Amsterdam
Timetable, London time
14:25EI 166 from Dublin at the gate
18:30KL 9936 to Amsterdam leaves the gate
4 h 05 apart on the timetable
The last days
EI 166 and KL 9936 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.