Cheap Flights From Chicago to Seattle

Take advantage of this limited-time flight deal from Chicago to Seattle starting at just $237 round trip. This fare is currently available for travel during Mar 25 – Apr 14, making it ideal for flexible travelers looking to secure the best possible value.
Flights are operated by Alaska, with multiple departure times depending on availability. Prices for airfare change frequently and can increase without notice, so we recommend booking early if your travel plans align with these dates. This deal is sourced directly from live airline pricing and may sell out quickly once seats are filled. Click the button above to view real-time availability and complete your booking directly with the airline or trusted booking partner