DL 1188 then DL 2111 at Salt Lake City
Pittsburgh → Salt Lake City → Boise
Timetable, Salt Lake City time
20:02DL 1188 from Pittsburgh at the gate
17:20DL 2111 to Boise leaves the gate
21 h 18 apart on the timetable, overnight
DL 2111 leaves 21 h 18 after DL 1188 arrives on the timetable: more than half a day, so not a connection we count.