Cheap Flights from Seattle (SEA) to Chicago (CHI)

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Flight deals from Seattle to Chicago

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Chicago? Find the lowest prices on one-way and round-trip tickets right here.

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Find the cheapest month to fly from Seattle to Chicago

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Chicago flights are currently cheapest in May.

Direct flights from Seattle to Chicago

Alternative Seattle to Chicago routes

Looking for the cheapest, fastest or easiest route from Seattle to Chicago? You could fly into the following airports instead.

Seattle to Chicago: Flight information

The things to know before you go.
Cheapest flight found$136
Cheapest month to flyJune
Average flight time4 hrs, 1 min
Most popular airlineUnited
Average flights per week464

Finding cheap flights from Seattle to Chicago: Frequently asked questions

There are 4 airports in Chicago: Chicago Midway, Chicago O'Hare International, Chicago Dupage County, and Chicago Rockford.
The best price we found for a round-trip flight from Seattle to Chicago is $134. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours is the average flight time from Seattle to Chicago.
United, Alaska Airlines and Air Tahiti Nui fly direct from Seattle to Chicago.
There are 464 flights per week flying from Seattle to Chicago, as of April 2024.
The cheapest month to fly from Seattle to Chicago is usually June.
If you're flying from Seattle, the cheapest airport near Chicago is Chicago O'Hare International – which is 15.8 miles away from the center of Chicago. We've found flights to this airport from $134.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Chicago on Tuesday, June 4, 2024.
Yes – the average flight time is 4 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 46°F. July is typically the warmest month in Chicago, when it usually averages around 80°F. You can expect the least rain in January. The coldest month is January, with temperatures averaging 18°F. The rainiest month is August.
The cheapest airline that flies to Chicago is Alaska Airlines.

Seattle to Chicago

Approximately 100 miles from the U.S.-Canada border is a city famously regarded for its high standard of “green” living and environmentally-conscious residents. The streets and numerous public parks are lined with evergreen trees, hence giving it the nickname “Emerald City.” Seattle is situated on the northwest Pacific Coast, near the convergence of Lake Washington and Puget Sound.

Over 3.6 million residents populate the surrounding metropolitan region, the majority of who refer to where they live as neighborhoods (as opposed to districts). There is a lot of grey area as far as the city’s geographical dividing lines are concerned, but the three main recognized areas are Downtown, North of Ship Canal, and South of Downtown.

Chi-Town is no stranger to sprawled out and diverse neighborhoods either. The destination is 1,737 miles to the East of Jet City, and a trip that typically takes 3 hours and 50 minutes to complete. Direct, non-stop flights from Seattle to Chicago may be booked via Alaska Airlines, American Airlines, Continental Airlines, United Airlines, and US Airways.

Helpful Information for Your departure

After arriving at Seattle-Tacoma International, which is located in SeaTac, just 12 miles south of Seattle’s downtown business district, you will have no problem finding a place to park. The facility features the largest under roof parking structure, with a grand total of 13,000 spots!

This airport commands a 40 million annual passenger base, and is a focal flight hub for Horizon Air, Delta Air Lines, and Alaska Airlines. It offers non-stop routes to international destinations in Asia, Europe, and the Middle East, and features a 23-acre rental car facility on its northeast side.

Timeless Memories in The Windy City

A trip to Chicago can come and go very quickly if you are not careful. As with any major city, the wealth of things to see and do can make it seem as if you never have enough time, which is why we recommend writing and sticking to a travel itinerary for the whole trip.

The Chicago Theatre, Wrigley Field, Oriental Institute Museum, Water Tower Place, Grant Park, Navy Pier, The Rookery, and Oak Street Beach are a few of the go-to destinations. Also remember to allocate enough time and money for a meal at one of the Chicago’s world-class eateries!

Indulge yourself in Chi-Town’s upscale shopping and restaurant scene by booking cheap flights from Seattle to Chicago on Skyscanner. Airfare savings = extra fun money!


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.