AA 1756 then UA 4743 at Denver
Dallas-Fort Worth → Denver → Salt Lake City
Timetable, Denver time
09:49AA 1756 from Dallas-Fort Worth at the gate
08:00UA 4743 to Salt Lake City leaves the gate
22 h 11 apart on the timetable, overnight
UA 4743 leaves 22 h 11 after AA 1756 arrives on the timetable: more than half a day, so not a connection we count.