AA 5340 then UA 5344 at O'Hare
Knoxville → Chicago → Spokane
Timetable, Chicago time
09:10AA 5340 from Knoxville at the gate
08:40UA 5344 to Spokane leaves the gate
23 h 30 apart on the timetable, overnight
UA 5344 leaves 23 h 30 after AA 5340 arrives on the timetable: more than half a day, so not a connection we count.