F9 3366 then AA 1710 at DFW
Denver → Dallas-Fort Worth → Pittsburgh
Timetable, Dallas-Fort Worth time
13:44F9 3366 from Denver at the gate
13:14AA 1710 to Pittsburgh leaves the gate
23 h 30 apart on the timetable, overnight
AA 1710 leaves 23 h 30 after F9 3366 arrives on the timetable: more than half a day, so not a connection we count.