F9 1563 then DL 903 at Atlanta
Orlando → Atlanta → Seattle
Timetable, Atlanta time
09:02F9 1563 from Orlando at the gate
21:20DL 903 to Seattle leaves the gate
12 h 18 apart on the timetable
DL 903 leaves 12 h 18 after F9 1563 arrives on the timetable: more than half a day, so not a connection we count.