UA 3280 then UA 1326 at Houston
Greensboro → Houston → Chicago
Timetable, Houston time
09:45UA 3280 from Greensboro at the gate
22:05UA 1326 to Chicago leaves the gate
12 h 20 apart on the timetable
UA 1326 leaves 12 h 20 after UA 3280 arrives on the timetable: more than half a day, so not a connection we count.