UA 2158 then TK 134 at Houston
San Antonio → Houston → Istanbul
Timetable, Houston time
15:27UA 2158 from San Antonio at the gate
15:05TK 134 to Istanbul leaves the gate
23 h 38 apart on the timetable, overnight
TK 134 leaves 23 h 38 after UA 2158 arrives on the timetable: more than half a day, so not a connection we count.