FR 10 then IB 493 at Madrid
Dublin → Madrid → Santander
Timetable, Madrid time
21:15FR 10 from Dublin at the gate
15:50IB 493 to Santander leaves the gatealso VY 5356, AY 5589, BA 7217
18 h 35 apart on the timetable, overnight
IB 493 leaves 18 h 35 after FR 10 arrives on the timetable: more than half a day, so not a connection we count.