2I 594 then DL 3123 at Salt Lake City
Denver → Salt Lake City → San Antonio
Timetable, Salt Lake City time
09:552I 594 from Denver at the gate
09:51DL 3123 to San Antonio leaves the gate
23 h 56 apart on the timetable, overnight
DL 3123 leaves 23 h 56 after 2I 594 arrives on the timetable: more than half a day, so not a connection we count.