F9 9073 then UA 2131 at Atlanta
Northwest Arkansas → Atlanta → Washington
Timetable, Atlanta time
23:11F9 9073 from Northwest Arkansas at the gate
19:34UA 2131 to Washington leaves the gate
20 h 23 apart on the timetable, overnight
UA 2131 leaves 20 h 23 after F9 9073 arrives on the timetable: more than half a day, so not a connection we count.