F9 1323 then UA 774 at Denver
Dallas-Fort Worth → Denver → Los Angeles
Timetable, Denver time
14:04F9 1323 from Dallas-Fort Worth at the gate
13:30UA 774 to Los Angeles leaves the gate
23 h 26 apart on the timetable, overnight
UA 774 leaves 23 h 26 after F9 1323 arrives on the timetable: more than half a day, so not a connection we count.