DL 2592 then DL 2455 at Salt Lake City
San Antonio → Salt Lake City → St Louis
Timetable, Salt Lake City time
09:42DL 2592 from San Antonio at the gate
09:38DL 2455 to St Louis leaves the gate
23 h 56 apart on the timetable, overnight
DL 2455 leaves 23 h 56 after DL 2592 arrives on the timetable: more than half a day, so not a connection we count.