SEA - ORD

C$ 94 Find Cheap Flights from Seattle to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Chicago departing on 20/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Chicago, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Chicago (SEA-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Chicago

Fri, 31 Oct - Mon, 3 Nov
Frontier Logo
2:22 p.m. - 11:30 a.m.SEA-ORD
19h 08m2 stops
Frontier Logo
6:00 a.m. - 1:03 p.m.ORD-SEA
9h 03m1 stop
C$ 273Frontier
Find Deal
Sat, 10 Jan - Thu, 22 Jan
Delta Logo
1:30 p.m. - 9:55 p.m.SEA-ORD
6h 25m1 stop
Delta Logo
7:10 a.m. - 2:54 p.m.ORD-SEA
9h 44m1 stop
C$ 274Delta
Find Deal
Fri, 31 Oct - Mon, 3 Nov
Hawaiian Airlines Logo
3:31 p.m. - 9:40 p.m.SEA-ORD
4h 09mdirect
Hawaiian Airlines Logo
6:00 a.m. - 8:40 a.m.ORD-SEA
4h 40mdirect
C$ 278Hawaiian Airlines
Find Deal
Fri, 31 Oct - Wed, 5 Nov
Delta Logo
5:55 p.m. - 11:50 p.m.SEA-ORD
3h 55mdirect
Delta Logo
2:25 p.m. - 5:00 p.m.ORD-SEA
4h 35mdirect
C$ 284Delta
Find Deal
Tue, 23 Dec - Tue, 20 Jan
Alaska Airlines Logo
12:25 a.m. - 6:29 a.m.SEA-ORD
4h 04mdirect
Alaska Airlines Logo
6:06 p.m. - 9:00 p.m.ORD-SEA
4h 54mdirect
C$ 296Alaska Airlines
Find Deal
Fri, 31 Oct - Tue, 4 Nov
Alaska Airlines Logo
3:31 p.m. - 9:40 p.m.SEA-ORD
4h 09mdirect
Alaska Airlines Logo
2:05 p.m. - 6:48 p.m.ORD-SEA
6h 43m1 stop
C$ 298Alaska Airlines
Find Deal
Thu, 8 Jan - Tue, 20 Jan
Southwest Logo
1:20 p.m. - 10:35 p.m.SEA-ORD
7h 15m1 stop
Southwest Logo
4:25 p.m. - 11:05 p.m.ORD-SEA
8h 40m1 stop
C$ 328Southwest
Find Deal
Tue, 25 Nov - Sat, 29 Nov
United Airlines Logo
7:00 a.m. - 1:09 p.m.SEA-ORD
4h 09mdirect
United Airlines Logo
7:10 a.m. - 9:53 a.m.ORD-SEA
4h 43mdirect
C$ 347United Airlines
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Southwest Logo
8:35 a.m. - 9:30 p.m.SEA-ORD
10h 55m2 stops
Southwest Logo
4:25 p.m. - 10:55 p.m.ORD-SEA
8h 30m1 stop
C$ 365Southwest
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Tue, 10 Mar - Wed, 11 Mar
Hawaiian Airlines Logo
11:25 a.m. - 11:10 p.m.SEA-ORD
9h 45m1 stop
Hawaiian Airlines Logo
2:59 p.m. - 11:46 p.m.ORD-SEA
10h 47m1 stop
C$ 373Hawaiian Airlines
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
United's Economy Plus offers extra legroom for comfort.
Use SEA Spot Saver for faster security at Seattle.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from C$ 273 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 17% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 273
Overall average: C$ 387
Frontier
Fri 31/10Mon 3/11
SEA - ORD • 2 stops
Cheapest direct flights
C$ 278
Typical prices: C$ 301-666
Hawaiian Airlines
Fri 31/10Mon 3/11
SEA - ORD • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Expert advice

Expert advice for your flight from Seattle to Chicago

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

American's Main Cabin Extra offers early boarding and complimentary drinks, enhancing travel comfort.


American Airlines' Wi-Fi offers 20 minutes free with an ad, useful for quick tasks.

Read more about American Airlinesby Harriet Baskas
United Airlines

United's Premier Access offers priority check-in and boarding, ideal for business travelers.


United's Economy Plus seats offer up to 15 cm more legroom, enhancing comfort on medium-haul flights.

Read more about United Airlinesby Stefanie Waldek
Alaska Airlines

Alaska's Premium Class offers priority boarding and complimentary drinks, ideal for comfort seekers.


Alaska's 20-minute baggage guarantee ensures quick baggage claim, offering peace of mind.

Read more about Alaska Airlinesby Harriet Baskas
Airports
SEA

Use the SEA Spot Saver for expedited security screening without a paid membership. Book online or via the flySEA app.

Read more about SEAby Harriet Baskas
ORD

Take the CTA Blue Line train from ORD to downtown Chicago in about 45 minutes, avoiding traffic delays.

Read more about ORDby Stefanie Waldek
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines, Alaska Airlines and SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Booking Insights

KAYAK's insights & trends for Seattle to Chicago flights

Get data-powered insights and trends into flights from Seattle to Chicago to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Chicago?

The average price of all round-trip flights from Seattle to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Chicago on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Seattle to Chicago. For your return ticket, we recommend flying on a Tuesday and avoiding Mondays for the best deals.

What is the cheapest month to fly from Seattle to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Chicago O'Hare Intl Airport is January, where tickets cost C$ 359 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 566 and C$ 463 respectively.

Can I save money by flying with a layover from Seattle to Chicago O'Hare Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 304 on average.

How far in advance should I book a flight from Seattle to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Chicago O'Hare Intl Airport, you should book around 3 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flightC$ 131
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Seattle to Chicago

When to book flights from Seattle to Chicago

Are your dates flexible? Find out the best times to travel from Seattle to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Chicago flights

  • Are there any attractions at Chicago O’Hare Airport?

    Yes, Chicago O’Hare Airport has several attractions, such as the Brachiosaurus Dinosaur, the Butch O'Hare Exhibit, the Hall of Flags, a light sculpture, an urban garden, painted benches, and a yoga room. If you need to spend the night at the airport, the CDA provides a cot, a pillow, and a passenger amenity kit with toiletries.

  • What's travel options are available from Chicago O’Hare Airport to Downtown Chicago?

    The CTA blue line L train offers a quick and convenient transportation option that'll take about 45min from O’Hare Airport. At the airport, you can take the blue line from Terminals 1, 2, and 3. Follow the "CTA Trains" signs to get there. It's a short distance from the baggage claim area. If you'd rather travel by bus, the shuttle pickup point is located outside the baggage claim at all terminals. Alternatively, you can use the Airport Supersaver, also in the same location, but allows more luggage. If a taxi sounds more like your preferred travel option, taxi stands are located outside the terminals.

  • Are there any hotels at Chicago O’Hare Airport?

    You can stay at the Hilton Chicago O'Hare Airport Hotel. It's directly across Terminal 1, 2, and 3 and within walking distance through the underground walkways or the Airport Transit System from Terminal 5.

  • Are there restaurants at Seattle-Tacoma Airport?

    If you arrive early at the Seattle Tacoma International Airport and need to grab a bite, you'll find several restaurants, including McDonald's, Beecher's Handmade Cheese, Hachi-Ko, Starbucks, Caffe D'arte, and Dish D'Lish, among others.

  • What is the cheapest flight from Seattle to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Chicago O'Hare Intl Airport was C$ 94 for a one-way ticket and C$ 196 for a round-trip.

  • Which airports will I be using when flying from Seattle to Chicago?

    Seattle airport is called Seattle/Tacoma Intl and the only airport in Chicago is Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Chicago?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Chicago flight route: American Airlines, Alaska Airlines, Hawaiian Airlines, Delta, JetBlue, and Air France.

  • Which aircraft models fly most regularly from Seattle to Chicago?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Seattle to Chicago flight route.

  • Which airline alliances offer flights from Seattle to Chicago?

    oneworld is the only airline alliance operating flights between Seattle and Chicago.

  • On which days can I fly direct from Seattle to Chicago?

    There are direct flights from Seattle to Chicago on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 139 or less one-way and C$ 384 or less round-trip.
  • If you're planning to travel out of Seattle into Chicago, you can book your flight from Seattle-Tacoma International Airport (SEA). The airport is about 13 miles away from Seattle city center. You can easily get there through the Link Light Rail that departs from Westlake Station in Downtown Seattle about every 15min.
  • Chicago has two major airports to choose from for your arrival, Chicago O'Hare International Airport (ORD) and Chicago Midway International Airport (MDW). Chicago O'Hare International Airport is the largest of the two and the most popular, but Chicago Midway International Airport is closer to Chicago’s city center. MDW is about 12 miles away, while ORD is about 18 miles away from Downtown Chicago.
  • Airlines offering non-stop flights from Seattle to Chicago include Alaska Airlines, United Airlines, Delta Air Lines, American Airlines, and Southwest Airlines. Spirit Airlines offers connecting flights with one or two layovers.
  • Seattle-Tacoma Airport has lounging areas if you get there early and need to relax for a while before boarding your flight. These lounges include the Club SEA that charges about $45, Trail Head BBQ Bar, and the Centurion Lounge.
  • Seattle-Tacoma Airport is the main hub for Alaska Airlines, as its headquarters are close by. It's also a hub for Delta Air Lines and happens to be its international gateway to Asia. Chicago O’Hare is the hub for American Airlines and United Airlines and the focus city for Frontier Airlines and Spirit Airlines.
  • Seattle-Tacoma International Airport has a children's play area with nursing rooms and suites. If you call ahead, you can get wheelchair assistance, special dietary needs, medical storage, and specific seat arrangements. Chicago O'Hare International Airport also offers similar services.

Prefer to fly direct from Seattle to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Chicago O'Hare Intl.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Chicago O'Hare Intl

Monday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Tuesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Friday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Saturday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Sunday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

See more nonstop flights

Direct returns

Chicago O'Hare Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Tuesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Friday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Saturday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Sunday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

See more nonstop flights

Reviews of the top airline flying from Seattle to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Chicago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10988 reviews
7.8Comfort
7.0Entertainment
8.1Boarding
7.1Food
8.5Crew
Airline reviews

Flight was delayed about 40 minutes by a mechanical problem. This made a long day even longer. Otherwise good.

8.0 ExcellentAnonymous, Sep 2025SEA - FAI
Read more Alaska Airlines reviews

Flight was delayed about 40 minutes by a mechanical problem. This made a long day even longer. Otherwise good.

Alaska Airlines adds time to flight time to make up for late departures. Also Alaska Airlines destroyed my suitcase and I had to buy another suitcase for return flight. Very frustrating and not sure I would fly Alaska Airlines again.

Landed and parked in back of larger jet. Cabin filled with jet exhaust. Left many with headache. I got sick to my stomach. Scrambled to find airsick bags

At first, I was given my neighbor's meal but didn't realize I was eating his food until I had already taken a bite out of his cheese. My own meal was ok (and my neighbor was good natured about the mistake).

Plane seats are comfortable and seemed more roomy than others I have been on. Playing was clean and flight crew friendly. Passengers who have a connecting flight should however be allowed off the plane first

flights on time, flights that were leaving when scheduled..having the alaska people on the phone and most of all getting rid of the new atmos website it is terrible!!!!!!!!

6 hour flight, just crackers and drinks. No WiFi, no tv, and tight seats. Just like every other airline.

Seattle airport terminal was a nightmare to navigate. Coming g off a cruise boat etc. Lack of convient Restrooms a major issue. Once able to get to boarding Alaska Air it was good experience.

I don’t want to pay extra to choose my seat

SeaTac airport hottible No signage to tell you where to go Took one and half hour to make to gate after being dropped at airport HORRIBLE LOTS OF yelling at patrons EXTREMELY HORRIBLE AND SCARY!

Everything you need to know for your flight from Seattle to Chicago

Information on your arrival and departure airports

Seattle (SEA)
O'Hare Intl (ORD)

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