UA 1373 then TK 134 at Houston
Phoenix → Houston → Istanbul
Timetable, Houston time
15:15UA 1373 from Phoenix at the gate
15:05TK 134 to Istanbul leaves the gate
23 h 50 apart on the timetable, overnight
TK 134 leaves 23 h 50 after UA 1373 arrives on the timetable: more than half a day, so not a connection we count.