AA 3769 then UA 5344 at O'Hare
Rochester (RST) → Chicago → Spokane
Timetable, Chicago time
08:49AA 3769 from Rochester (RST) at the gate
08:40UA 5344 to Spokane leaves the gate
23 h 51 apart on the timetable, overnight
UA 5344 leaves 23 h 51 after AA 3769 arrives on the timetable: more than half a day, so not a connection we count.