FR 210 then FR 1982 at Dublin
London Stansted → Dublin → Biarritz
Timetable, Dublin time
21:45FR 210 from London Stansted at the gate
12:40FR 1982 to Biarritz leaves the gate
14 h 55 apart on the timetable, overnight
FR 1982 leaves 14 h 55 after FR 210 arrives on the timetable: more than half a day, so not a connection we count.