F9 4702 then UA 2376 at Atlanta
Austin → Atlanta → Houston
Timetable, Atlanta time
19:10F9 4702 from Austin at the gate
18:56UA 2376 to Houston leaves the gate
23 h 46 apart on the timetable, overnight
UA 2376 leaves 23 h 46 after F9 4702 arrives on the timetable: more than half a day, so not a connection we count.