TK 6019 then F9 44 at O'Hare
Istanbul → Chicago → Cancún
Timetable, Chicago time
06:25TK 6019 from Istanbul at the gate
06:10F9 44 to Cancún leaves the gate
23 h 45 apart on the timetable, overnight
F9 44 leaves 23 h 45 after TK 6019 arrives on the timetable: more than half a day, so not a connection we count.