DL 4237 then UA 1322 at Salt Lake City
St George → Salt Lake City → Washington
Timetable, Salt Lake City time
10:10DL 4237 from St George at the gate
10:05UA 1322 to Washington leaves the gate
23 h 55 apart on the timetable, overnight
UA 1322 leaves 23 h 55 after DL 4237 arrives on the timetable: more than half a day, so not a connection we count.