TK 6037 then UA 5418 at O'Hare
Istanbul → Chicago → Madison
Timetable, Chicago time
05:05TK 6037 from Istanbul at the gate
17:54UA 5418 to Madison leaves the gate
12 h 49 apart on the timetable
UA 5418 leaves 12 h 49 after TK 6037 arrives on the timetable: more than half a day, so not a connection we count.