EW 2520 then AA 41 at Barcelona
Stuttgart → Barcelona → Chicago
Timetable, Barcelona time
14:25EW 2520 from Stuttgart at the gate
11:30AA 41 to Chicago leaves the gatealso BA 1552, AY 3829, IB 4383
21 h 05 apart on the timetable, overnight
AA 41 leaves 21 h 05 after EW 2520 arrives on the timetable: more than half a day, so not a connection we count.