DL 1963 then AA 1594 at Phoenix
Seattle → Phoenix → Austin
Timetable, Phoenix time
19:35DL 1963 from Seattle at the gate
13:58AA 1594 to Austin leaves the gate
18 h 23 apart on the timetable, overnight
AA 1594 leaves 18 h 23 after DL 1963 arrives on the timetable: more than half a day, so not a connection we count.