FR 7073 then FR 261 at Dublin
Porto → Dublin → Alicante
Timetable, Dublin time
23:00FR 7073 from Porto at the gate
17:45FR 261 to Alicante leaves the gate
18 h 45 apart on the timetable, overnight
FR 261 leaves 18 h 45 after FR 7073 arrives on the timetable: more than half a day, so not a connection we count.