U2 91 then FR 6596 at Manchester
Belfast International → Manchester → Barcelona
Timetable, Manchester time
12:45U2 91 from Belfast International at the gate
06:30FR 6596 to Barcelona leaves the gate
17 h 45 apart on the timetable, overnight
FR 6596 leaves 17 h 45 after U2 91 arrives on the timetable: more than half a day, so not a connection we count.