UA 1535 then AA 3397 at DFW
Houston → Dallas-Fort Worth → Wichita
Timetable, Dallas-Fort Worth time
19:35UA 1535 from Houston at the gate
17:42AA 3397 to Wichita leaves the gate
22 h 07 apart on the timetable, overnight
AA 3397 leaves 22 h 07 after UA 1535 arrives on the timetable: more than half a day, so not a connection we count.