DL 2247 then DL 1564 at O'Hare
Salt Lake City → Chicago → Seattle (SEA)
Timetable, Chicago time
12:03DL 2247 from Salt Lake City at the gate
12:00DL 1564 to Seattle (SEA) leaves the gate
23 h 57 apart on the timetable, overnight
DL 1564 leaves 23 h 57 after DL 2247 arrives on the timetable: more than half a day, so not a connection we count.