UA 697 then UA 3234 at Houston
Washington National → Houston → Midland
Timetable, Houston time
10:54UA 697 from Washington National at the gate
06:45UA 3234 to Midland leaves the gate
19 h 51 apart on the timetable, overnight
UA 3234 leaves 19 h 51 after UA 697 arrives on the timetable: more than half a day, so not a connection we count.