AA 4043 then AS 583 at O'Hare
Wichita → Chicago → Seattle (SEA)
Timetable, Chicago time
08:50AA 4043 from Wichita at the gate
09:30AS 583 to Seattle (SEA) leaves the gate
40 min apart on the timetable
The last days
AA 4043 and AS 583 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.