TK 6023 then UA 1568 at O'Hare
Istanbul → Chicago → Rochester (ROC)
Timetable, Chicago time
06:25TK 6023 from Istanbul at the gate
18:29UA 1568 to Rochester (ROC) leaves the gate
12 h 04 apart on the timetable
UA 1568 leaves 12 h 04 after TK 6023 arrives on the timetable: more than half a day, so not a connection we count.