WN 2115 then DL 3815 at Salt Lake City
Denver → Salt Lake City → Omaha
Timetable, Salt Lake City time
10:30WN 2115 from Denver at the gate
09:25DL 3815 to Omaha leaves the gate
22 h 55 apart on the timetable, overnight
DL 3815 leaves 22 h 55 after WN 2115 arrives on the timetable: more than half a day, so not a connection we count.