AS 542 then AA 1974 at DFW
Seattle → Dallas-Fort Worth → Phoenix
Timetable, Dallas-Fort Worth time
23:59AS 542 from Seattle at the gate
12:30AA 1974 to Phoenix leaves the gate
12 h 31 apart on the timetable, overnight
AA 1974 leaves 12 h 31 after AS 542 arrives on the timetable: more than half a day, so not a connection we count.