AA 2489 then AS 9342 at O'Hare
Baltimore → Chicago → Seattle (SEA)
Timetable, Chicago time
08:45AA 2489 from Baltimore at the gate
13:30AS 9342 to Seattle (SEA) leaves the gate
4 h 45 apart on the timetable
The last days
AA 2489 and AS 9342 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.