DL 445 then DL 3788 at Salt Lake City
Boston → Salt Lake City → Colorado Springs
Timetable, Salt Lake City time
22:13DL 445 from Boston at the gate
20:40DL 3788 to Colorado Springs leaves the gate
22 h 27 apart on the timetable, overnight
DL 3788 leaves 22 h 27 after DL 445 arrives on the timetable: more than half a day, so not a connection we count.