FR 2403 then UA 770 at Barcelona
Seville → Barcelona → Chicago
Timetable, Barcelona time
17:20FR 2403 from Seville at the gate
15:10UA 770 to Chicago leaves the gatealso AC 4575, LH 8858
21 h 50 apart on the timetable, overnight
UA 770 leaves 21 h 50 after FR 2403 arrives on the timetable: more than half a day, so not a connection we count.