B6 33 then AF 1476 at Charles de Gaulle
Boston → Paris → Bilbao
Timetable, Paris time
09:51B6 33 from Boston at the gate
09:45AF 1476 to Bilbao leaves the gate
23 h 54 apart on the timetable, overnight
AF 1476 leaves 23 h 54 after B6 33 arrives on the timetable: more than half a day, so not a connection we count.