FR 1453 then FR 122 at Dublin
Brussels → Dublin → London Gatwick
Timetable, Dublin time
18:10FR 1453 from Brussels at the gate
12:35FR 122 to London Gatwick leaves the gate
18 h 25 apart on the timetable, overnight
FR 122 leaves 18 h 25 after FR 1453 arrives on the timetable: more than half a day, so not a connection we count.