WN 2115 then DL 657 at Salt Lake City
Denver (DEN) → Salt Lake City → Boston
Timetable, Salt Lake City time
10:30WN 2115 from Denver (DEN) at the gate
09:55DL 657 to Boston leaves the gate
23 h 25 apart on the timetable, overnight
DL 657 leaves 23 h 25 after WN 2115 arrives on the timetable: more than half a day, so not a connection we count.