F9 4409 then WN 2105 at Atlanta
Washington → Atlanta → Houston Hobby
Timetable, Atlanta time
23:13F9 4409 from Washington at the gate
18:25WN 2105 to Houston Hobby leaves the gate
19 h 12 apart on the timetable, overnight
WN 2105 leaves 19 h 12 after F9 4409 arrives on the timetable: more than half a day, so not a connection we count.