DL 3808 then DL 2797 at Salt Lake City
Missoula → Salt Lake City → San Antonio
Timetable, Salt Lake City time
20:10DL 3808 from Missoula at the gate
17:20DL 2797 to San Antonio leaves the gate
21 h 10 apart on the timetable, overnight
DL 2797 leaves 21 h 10 after DL 3808 arrives on the timetable: more than half a day, so not a connection we count.