F9 1957 then UA 3917 at Houston
Detroit → Houston → Austin
Timetable, Houston time
14:53F9 1957 from Detroit at the gate
07:30UA 3917 to Austin leaves the gate
16 h 37 apart on the timetable, overnight
UA 3917 leaves 16 h 37 after F9 1957 arrives on the timetable: more than half a day, so not a connection we count.