V7 3508 then U2 1898 at Fiumicino
Bilbao → Rome → Bordeaux
Timetable, Rome time
18:50V7 3508 from Bilbao at the gate
17:00U2 1898 to Bordeaux leaves the gate
22 h 10 apart on the timetable, overnight
U2 1898 leaves 22 h 10 after V7 3508 arrives on the timetable: more than half a day, so not a connection we count.