UA 539 then UA 4307 at Houston
Dallas-Fort Worth → Houston → Northwest Arkansas
Timetable, Houston time
13:33UA 539 from Dallas-Fort Worth at the gate
09:35UA 4307 to Northwest Arkansas leaves the gate
20 h 02 apart on the timetable, overnight
UA 4307 leaves 20 h 02 after UA 539 arrives on the timetable: more than half a day, so not a connection we count.