DL 423 then F9 4949 at Salt Lake City
Atlanta → Salt Lake City → Phoenix Sky Harbor
Timetable, Salt Lake City time
16:03DL 423 from Atlanta at the gate
13:01F9 4949 to Phoenix Sky Harbor leaves the gate
20 h 58 apart on the timetable, overnight
F9 4949 leaves 20 h 58 after DL 423 arrives on the timetable: more than half a day, so not a connection we count.