AS 9921 then DL 2111 at Salt Lake City
Dallas-Fort Worth → Salt Lake City → Boise
Timetable, Salt Lake City time
19:19AS 9921 from Dallas-Fort Worth at the gate
17:20DL 2111 to Boise leaves the gate
22 h 01 apart on the timetable, overnight
DL 2111 leaves 22 h 01 after AS 9921 arrives on the timetable: more than half a day, so not a connection we count.