AA 1873 then WN 1737 at Salt Lake City
Chicago O'Hare → Salt Lake City → Denver
Timetable, Salt Lake City time
16:45AA 1873 from Chicago O'Hare at the gate
15:10WN 1737 to Denver leaves the gate
22 h 25 apart on the timetable, overnight
WN 1737 leaves 22 h 25 after AA 1873 arrives on the timetable: more than half a day, so not a connection we count.