How long does a flight from Seattle to Chicago take?

The duration of a direct flight to Chicago from Seattle is typically 4h 08m . The journey crosses a distance of 1,715 miles.

How many flights are there between Seattle and Chicago O'Hare Intl Airport per day?

Each day, there are between 17 and 18 direct flights that take off from Seattle and land in Chicago O'Hare Intl Airport, with an average flight time of 4h 13m. The most common departure time is 10:00 and most flights take off in the morning. Each week, there are 125 flights. The most frequent day of departure is Monday, when 14% of all weekly flights depart. The fewest flights depart on a Saturday.

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

In the last 5 days, the lowest price for a flight from Seattle to Chicago O'Hare Intl Airport was £119 for a one-way ticket and £207 for a return.

Which airlines fly most frequently between Seattle and Chicago?

American Airlines connects Seattle to Chicago with 35 flights per week. United Airlines also offers 35 flights per week, while Alaska Airlines follows with 34 flights per week.

What’s the earliest departure time from Seattle to Chicago?

Early birds can take the earliest flight from Seattle at 00:16 and will be landing in Chicago O'Hare Intl Airport at 06:20.

What’s the latest departure time from Seattle to Chicago?

If you prefer to fly at night, the latest flight from Seattle to Chicago O'Hare Intl Airport jets off at 23:59 and lands at 06:05.

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

American Airlines, Delta, Alaska Airlines, JetBlue, and Scandinavian Airlines offer inflight Wi-Fi service on the Seattle to Chicago flight route.

Which aircraft models fly most regularly from Seattle to Chicago?

The Boeing 737-900 is the aircraft model that flies most regularly on the Seattle to Chicago flight route.

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 return 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.

Which cabin class options are there for flights between Seattle and Chicago O'Hare Intl Airport?

There are 2 cabin class options for the route. These are Business and Economy . Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Which airlines provide the cheapest flights from Seattle to Chicago?

In the past 5 days, the cheapest return tickets from Seattle to Chicago were found on Delta (£207) and United Airlines (£211).

£119 CHEAP FLIGHTS from Seattle to Chicago (SEA - ORD)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest return fare

£207

Typical prices: £208-£340

Delta

Wed 14/10Sat 24/10

SEA - ORD • Direct

Cheapest one-way flight

£119

Typical prices: £110-£289

Delta

Sat 31/10

SEA - ORD • Direct

Advice from real travellers

AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.

American Main Cabin Extra adds early boarding and free drinks for a small fee.

British Airways Euro Traveller includes a cabin bag, unlike some budget fares.

Expert advice

Direct flights

Every day

You can fly direct with Alaska Airlines, American Airlines, and others. Average duration is 4h 13m

Direct flights

When to book

3 weeks

in advance

Our data shows that travellers who book at least 3 weeks in advance save around 29% compared to booking last minute.

Insights

When to travel

February

Cheapest • 29% price drop

December

Most popular

Good to know

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Chicago!

Flight Deals

Cheap Flights from Seattle to Chicago (SEA-ORD)

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from Seattle to Chicago

Wed, 14 Oct - Sat, 24 Oct

10:39 - 16:53SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 14mdirect

06:35 - 09:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mdirect

£207Delta

Sat, 7 Nov - Wed, 11 Nov

16:27 - 00:21SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

5h 54m1 stop Denver Intl

07:00 - 09:50ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 50mdirect

£208Multiple Airlines

Wed, 7 Oct - Wed, 14 Oct

07:15 - 13:30SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

17:30 - 20:16ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 46mdirect

£208Delta

Fri, 25 Dec - Wed, 6 Jan

14:10 - 20:23SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 13mdirect

12:55 - 20:10ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

9h 15m1 stop Washington, D.C. Dulles Intl

£211United Airlines

Tue, 13 Oct - Wed, 21 Oct

23:41 - 05:40SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

3h 59mdirect

06:30 - 15:12ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

10h 42m1 stop Denver Intl

£212Multiple Airlines

Thu, 15 Oct - Fri, 23 Oct

23:50 - 08:53SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

7h 03m1 stop Minneapolis St Paul

12:50 - 15:25ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 35mdirect

£214Delta

Fri, 9 Oct - Thu, 15 Oct

23:50 - 08:53SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

7h 03m1 stop Minneapolis St Paul

06:35 - 09:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mdirect

£215Delta

Wed, 7 Oct - Wed, 14 Oct

07:15 - 13:30SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

05:27 - 14:19ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

10h 52m1 stop Atlanta Hartsfield-Jackson

£216Delta

Mon, 2 Nov - Mon, 9 Nov

20:09 - 00:21SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

26h 12m2 stops Los Angeles Denver Intl

06:30 - 15:12ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

10h 42m1 stop Denver Intl

£219Frontier

Wed, 11 Nov - Wed, 18 Nov

23:42 - 05:40SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

3h 58mdirect

18:35 - 21:29ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 54mdirect

£220Alaska Airlines

Recent last minute flight deals from Seattle to Chicago

Fri, 25 Sep - Fri, 23 Oct

07:15 - 13:29SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 14mdirect

06:35 - 09:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mdirect

£316Delta

Sun, 27 Sep - Thu, 1 Oct

11:45 - 18:01SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 16mdirect

17:44 - 20:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 36mdirect

£355Delta

Wed, 23 Sep - Thu, 24 Sep

00:16 - 06:20SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mdirect

08:00 - 10:34ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 34mdirect

£360Alaska Airlines

Sat, 26 Sep - Tue, 29 Sep

06:00 - 12:07SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 07mdirect

13:03 - 15:41ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 38mdirect

£362Alaska Airlines

Sat, 26 Sep - Tue, 29 Sep

06:00 - 12:07SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 07mdirect

13:03 - 15:41ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 38mdirect

£363Alaska Airlines

Thu, 24 Sep - Sat, 26 Sep

07:00 - 13:15SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

13:29 - 16:05ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 36mdirect

£364United Airlines

Sat, 26 Sep - Tue, 29 Sep

08:41 - 19:21SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

8h 40m1 stop San Diego

15:52 - 18:25ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 33mdirect

£369Alaska Airlines

Sat, 26 Sep - Tue, 29 Sep

08:41 - 19:21SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

8h 40m1 stop San Diego

15:52 - 18:25ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 33mdirect

£370Alaska Airlines

Sat, 26 Sep - Tue, 29 Sep

08:41 - 19:21SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

8h 40m1 stop San Diego

15:52 - 18:25ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 33mdirect

£370Alaska Airlines

Thu, 24 Sep - Tue, 29 Sep

17:50 - 23:57SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 07mdirect

14:05 - 18:36ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

6h 31m1 stop Salt Lake City

£371Delta

Recent direct flight deals from Seattle to Chicago

Wed, 14 Oct - Sat, 24 Oct

10:39 - 16:53SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 14mdirect

06:35 - 09:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mdirect

£207Delta

Wed, 7 Oct - Wed, 14 Oct

07:15 - 13:30SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

17:30 - 20:16ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 46mdirect

£208Delta

Wed, 4 Nov - Wed, 11 Nov

17:51 - 23:59SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 08mdirect

18:35 - 21:29ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 54mdirect

£219Alaska Airlines

Wed, 11 Nov - Wed, 18 Nov

23:42 - 05:40SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

3h 58mdirect

18:35 - 21:29ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 54mdirect

£220Alaska Airlines

Tue, 6 Oct - Sat, 10 Oct

17:30 - 23:34SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mdirect

17:48 - 20:34ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 46mdirect

£231Delta

Tue, 13 Oct - Wed, 14 Oct

23:41 - 05:40SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

3h 59mdirect

07:00 - 09:42ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 42mdirect

£233Alaska Airlines

Mon, 19 Oct - Fri, 23 Oct

07:15 - 13:30SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

17:30 - 20:16ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 46mdirect

£235Delta

Sat, 17 Oct - Sat, 31 Oct

07:45 - 14:00SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mdirect

06:35 - 09:20ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mdirect

£237Delta

Fri, 30 Oct - Tue, 3 Nov

08:32 - 14:53SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 21mdirect

18:35 - 21:29ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 54mdirect

£239Alaska Airlines

Wed, 28 Oct - Sun, 1 Nov

10:33 - 16:50SEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 17mdirect

07:00 - 09:50ORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 50mdirect

£244Alaska Airlines

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.

Prices

Airlines

How much is a return flight from Seattle to Chicago O'Hare Intl Airport?

Flight prices are below average for this route right now.

Flights to Chicago O'Hare Intl Airport from Seattle usually cost between £234 and £344 in October.
The lowest price found in the past 5 days was £207 on Alaska Airlines (17 Oct–20 Oct).

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

The cheapest month for flights from Seattle to Chicago O'Hare Intl Airport is February, where tickets cost £184 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £311 and £305 respectively.

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

No, with an average price for the route of £270, prices are generally cheapest when you fly direct.

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

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 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Find deals

Expert advice

Our travel experts

Harriet Baskas

Expert on American Airlines and SEA

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, 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.

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Expert on ORD

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 out at sea, likely en route to Antarctica or the Arctic.

Low season	January
High season	December
Cheapest flight	£119

Best time to beat the crowds (28% less expensive on average)

Most popular time to fly (6% more expensive 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 return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

Verified travelerFlew with Alaska Airlines-Aug 2026

Be prepared to have a very difficult time checking in if you are not technology savvy. I could not figure out how to check in. It made me scan with my phone to check in, but I couldn’t figure out how to do it and then an employer was there pushed buttons on the kiosk and printed up a boarding pass. Where did customer service go?! and then, we had to wait in a huge long long long line just to drop off the bag. Be certain you give yourself extra time for all of this chaos. Flying is getting worse and worse every time I fly.

Verified travelerFlew with United Airlines-Jul 2024

Budget if you’re planning on shopping for meals or souvenirs at Sea-Tac, it’s not cheap.

What is the cheapest flight from Seattle to Chicago O'Hare Intl Airport?
In the last 5 days, the lowest price for a flight from Seattle to Chicago O'Hare Intl Airport was £119 for a one-way ticket and £207 for a return.
Which airlines offer Wi-Fi service onboard planes from Seattle to Chicago?
American Airlines, Delta, Alaska Airlines, JetBlue, and Scandinavian Airlines offer inflight Wi-Fi service on the Seattle to Chicago flight route.
Which aircraft models fly most regularly from Seattle to Chicago?
The Boeing 737-900 is the aircraft model that flies most regularly on the Seattle to Chicago flight route.
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 return 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.

Looking for a cheap flight from Chicago to Seattle? 25% of our users found flights on this route for £153 or less one-way.

Direct departures

Seattle/Tacoma Intl to Chicago O'Hare Intl

Monday

Alaska Airlines,American Airlines,Delta, +1 more