UA 4310 then TK 134 at Houston
Mc Allen → Houston → Istanbul
Timetable, Houston time
15:30UA 4310 from Mc Allen at the gate
15:05TK 134 to Istanbul leaves the gate
23 h 35 apart on the timetable, overnight
TK 134 leaves 23 h 35 after UA 4310 arrives on the timetable: more than half a day, so not a connection we count.