DL 9728 then UA 1322 at Salt Lake City
Los Angeles → Salt Lake City → Washington
Timetable, Salt Lake City time
12:25DL 9728 from Los Angeles at the gate
10:05UA 1322 to Washington leaves the gate
21 h 40 apart on the timetable, overnight
UA 1322 leaves 21 h 40 after DL 9728 arrives on the timetable: more than half a day, so not a connection we count.