TK 6037 then UA 5415 at O'Hare
Istanbul → Chicago → Des Moines
Timetable, Chicago time
05:05TK 6037 from Istanbul at the gate
17:45UA 5415 to Des Moines leaves the gate
12 h 40 apart on the timetable
UA 5415 leaves 12 h 40 after TK 6037 arrives on the timetable: more than half a day, so not a connection we count.