DL 4253 then F9 4949 at Salt Lake City
St George → Salt Lake City → Phoenix Sky Harbor
Timetable, Salt Lake City time
14:30DL 4253 from St George at the gate
13:01F9 4949 to Phoenix Sky Harbor leaves the gate
22 h 31 apart on the timetable, overnight
F9 4949 leaves 22 h 31 after DL 4253 arrives on the timetable: more than half a day, so not a connection we count.