FI 9 then UA 5539 at O'Hare
Reykjavík → Chicago → Cleveland
Timetable, Chicago time
16:58FI 9 from Reykjavík at the gate
10:45UA 5539 to Cleveland leaves the gate
17 h 47 apart on the timetable, overnight
UA 5539 leaves 17 h 47 after FI 9 arrives on the timetable: more than half a day, so not a connection we count.