TK 6039 then UA 1394 at O'Hare
Istanbul → Chicago → San Antonio
Timetable, Chicago time
07:50TK 6039 from Istanbul at the gate
20:30UA 1394 to San Antonio leaves the gate
12 h 40 apart on the timetable
UA 1394 leaves 12 h 40 after TK 6039 arrives on the timetable: more than half a day, so not a connection we count.