IB 987 then U2 705 at Manchester
Madrid → Manchester → Belfast International
Timetable, Manchester time
13:55IB 987 from Madrid at the gate
15:40U2 705 to Belfast International leaves the gate
1 h 45 apart on the timetable
The last days
IB 987 and U2 705 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.