F9 1403 then UA 3237 at Houston
Atlanta → Houston → Mc Allen
Timetable, Houston time
07:23F9 1403 from Atlanta at the gate
19:45UA 3237 to Mc Allen leaves the gate
12 h 22 apart on the timetable
UA 3237 leaves 12 h 22 after F9 1403 arrives on the timetable: more than half a day, so not a connection we count.