AA 2445 then UA 3755 at Houston
Charlotte → Houston → Lubbock
Timetable, Houston time
08:58AA 2445 from Charlotte at the gate
22:10UA 3755 to Lubbock leaves the gate
13 h 12 apart on the timetable
UA 3755 leaves 13 h 12 after AA 2445 arrives on the timetable: more than half a day, so not a connection we count.