V7 2566 then U2 1126 at Fiumicino
Nantes → Rome → Basel
Timetable, Rome time
18:55V7 2566 from Nantes at the gate
16:35U2 1126 to Basel leaves the gate
21 h 40 apart on the timetable, overnight
U2 1126 leaves 21 h 40 after V7 2566 arrives on the timetable: more than half a day, so not a connection we count.