FR 6839 then U2 2159 at Manchester
Prague → Manchester → Amsterdam
Timetable, Manchester time
12:00FR 6839 from Prague at the gate
16:35U2 2159 to Amsterdam leaves the gate
4 h 35 apart on the timetable
The last days
FR 6839 and U2 2159 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.