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$53+ Cheap flights from Seattle (SEA) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHI
Nov 23 — Nov 301
Sat 11/23
Sat 11/30
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Chicago are usually found in January or February, booked 73 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

January

Round-trip from

$112
(Gotogate)

One-way from

$53
(Cheapflightsfares)
Provider with most accurate pricing for Seattle/Tacoma Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Chicago (CHI) flights.
Search Deals
High demand for flights, 19% potential price rise
Search Deals
Best time to find cheap flights, 28% potential price drop
Search Deals
From Seattle/Tacoma Intl to Chicago (CHI)
Search Deals
One-way flight from Seattle/Tacoma Intl to Chicago (CHI)
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Find flight deals from Seattle to Chicago

Cheapest flights from Seattle to Chicago
Explore the most affordable flight options available from Seattle to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2024.

This FlightHub deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/139:57 amSEA - ORD
1 stop7h 33mFrontier
Mon 12/167:25 amORD - SEA
1 stop8h 09mFrontier
Deal found 11/17$177
This American Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:31 amSEA - ORD
Nonstop4h 03mAmerican Airlines
Fri 1/109:55 amORD - SEA
Nonstop4h 47mAmerican Airlines
Deal found 11/17$178
This Kiwi.com deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/114:00 pmSEA - ORD
1 stop11h 30mSpirit Airlines
Sun 12/159:53 pmORD - SEA
1 stop16h 02mSpirit Airlines
Deal found 11/17$181
This Trip.com deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/75:51 pmSEA - ORD
Nonstop3h 56mMultiple Airlines
Sun 12/156:36 pmORD - SEA
1 stop16h 21mMultiple Airlines
Deal found 11/16$182
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/135:59 pmSEA - ORD
Nonstop4h 00mDelta
Mon 12/166:05 amORD - SEA
Nonstop4h 50mDelta
Deal found 11/17$187
This Alaska Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:45 pmSEA - ORD
1 stop6h 45mAlaska Airlines
Thu 1/95:28 pmORD - SEA
Nonstop4h 43mAlaska Airlines
Deal found 11/17$192
This eDestinos deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/124:58 pmSEA - MDW
2 stops29h 15mFrontier
Mon 12/164:27 pmMDW - SEA
2 stops30h 19mFrontier
Deal found 11/17$200
This eDestinos deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:21 pmSEA - MDW
1 stop12h 27mMultiple Airlines
Mon 12/164:27 pmMDW - SEA
2 stops30h 19mMultiple Airlines
Deal found 11/17$201
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/255:36 amSEA - ORD
1 stop7h 05mUnited Airlines
Mon 11/257:55 pmORD - SEA
Nonstop4h 51mUnited Airlines
Deal found 11/18$239
This Southwest deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:50 amSEA - MDW
1 stop11h 05mSouthwest
Wed 12/119:45 amMDW - SEA
Nonstop4h 40mSouthwest
Deal found 11/18$263
This Sun Country Air deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/186:10 pmSEA - ORD
1 stop14h 35mSun Country Air
Tue 12/2410:00 amORD - SEA
1 stop9h 29mSun Country Air
Deal found 11/16$310
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2312:55 amSEA - MDW
1 stop5h 56mDelta
Sun 11/245:42 pmMDW - SEA
1 stop7h 27mDelta
Deal found 11/17$436

Find flights from Seattle to Chicago within your budget

Customize your flight search to find flights from Seattle to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,638,201 searches. Data last updated November 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Fri 12/13

9:57 am-7:30 pm

1 stop7h 33m

Chicago O'Hare Intl

Mon 12/16

7:25 am-1:34 pm

1 stop8h 09m

$177

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Fri 1/24

5:55 pm-11:56 pm

Nonstop4h 01m

Chicago O'Hare Intl

Tue 1/28

2:10 pm-4:56 pm

Nonstop4h 46m

$178

SeattleChicago

SEA - MDW

SEAMDW

Seattle/Tacoma Intl

Wed 1/8

10:40 am-4:40 pm

Nonstop4h 00m

Chicago Midway

Mon 1/13

9:15 am-11:50 am

Nonstop4h 35m

$179

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 1/8

2:16 pm-10:57 pm

1 stop6h 41m

Chicago O'Hare Intl

Tue 1/14

1:39 pm-12:14 am

1 stop12h 35m

$181

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 12/7

4:00 pm-5:30 am

1 stop11h 30m

Chicago O'Hare Intl

Sun 12/15

6:36 pm-8:57 am

1 stop16h 21m

$183

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 1/1

8:45 pm-5:30 am

1 stop6h 45m

Chicago O'Hare Intl

Wed 1/8

2:10 pm-4:56 pm

Nonstop4h 46m

$186

SeattleChicago

SEA - MDW

SEAMDW

Seattle/Tacoma Intl

Thu 12/12

9:21 pm-11:48 am

1 stop12h 27m

Chicago Midway

Mon 12/16

4:27 pm-8:46 pm

2 stops30h 19m

$187

SeattleChicago

SEA - MDW

SEAMDW

Seattle/Tacoma Intl

Thu 2/20

3:16 pm-12:17 am

1 stop7h 01m

Chicago Midway

Sat 2/22

6:40 am-12:46 pm

1 stop8h 06m

$192

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 12/3

11:55 pm-5:52 am

Nonstop3h 57m

Chicago O'Hare Intl

Wed 12/11

9:20 am-12:08 pm

Nonstop4h 48m

$249

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Mon 12/2

12:25 am-6:29 am

Nonstop4h 04m

Chicago O'Hare Intl

Wed 12/11

9:55 am-12:43 pm

Nonstop4h 48m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 29 results
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Compare providers for flights from Seattle to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Chicago in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*3 stars
KAYAKPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Chicago

Get recent, data-driven insights about flights from Seattle to Chicago including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Chicago. Price data was last updated on November 15, 2024.

The price you pay for your flight from Seattle to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Chicago?

Currently, September is the cheapest month in which you can book a flight from Seattle to Chicago (average of $232). Flying from Seattle to Chicago in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to CHI?

Find hourly flight availability from Seattle to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2024.

It’s typically best to fly out from Seattle to Chicago in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Seattle to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Chicago. Price data was last updated on November 10, 2024.

Travelers seeking maximum savings on their Seattle to Chicago flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Chicago

Explore weekly flight availability from Seattle to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 18, 2024.

The most flights from SEA to CHI are scheduled on a Sunday (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated November 18, 2024.
Read through reviews of airlines operating flights from Seattle to Chicago, such as Frontier, American Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,022 reviews
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,451 reviews
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,766 reviews
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,168 reviews
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,022 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Seattle to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Chicago?

    For a flight from Seattle to Chicago, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 29 outbound flights to Chicago per day. 7 airlines have flights to Chicago from Seattle/Tacoma Intl on a regular basis.

  • What are the cheapest airlines flying from Seattle to Chicago round-trip?

    Our cheapest airline available from Seattle to Chicago is Frontier. Our recent data shows that you can find tickets from as low as $112 on this airline. Additional options worth looking into are Delta and Spirit Airlines, starting at $169 and $170 round-trip. Users have found that Frontier is 61% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Chicago one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $53. Spirit Airlines flights start at $84 while deals on Alaska Airlines start at $85 one-way.

  • What are the most popular routes from Seattle to Chicago?

    While some choose either Seattle/Tacoma Intl - Chicago Midway or Seattle/Tacoma Intl - Chicago Greater Rockford, Seattle/Tacoma Intl - Chicago O'Hare Intl is the most popular route from Seattle to Chicago.

  • What are the most reliable airlines from Seattle to Chicago?

    No one likes to see their flight delayed. When booking a flight from Seattle to Chicago consider choosing Avianca (100%), KLM (98%) or WestJet (98%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Chicago?

    Looking for the cheapest flight from Seattle to Chicago? While on average our users pay $777, our data indicates the cheapest price to be $93. The most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl), is priced around $134.

  • Can I find deals for flights from Seattle to Chicago that include hotel bookings?

    Yes. In addition to deals on Seattle to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Chicago.

  • Can I find deals for business class flights from Seattle to Chicago?

    Yes. Cheapflights offers flight deals from Seattle to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Chicago?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Chicago (average of $232). Flying from Seattle to Chicago in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Seattle to Chicago

Discover the top 7 airlines that operate flights from Seattle to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,638,201 searches. Data last updated November 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$100Average$441FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$116Average$245FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$126Average$311FlexibilityNo cancel feeOn-time75%
FrontierCheapest$131Average$267FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$136Average$339FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$153Average$356FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$200Average$399FlexibilityNo cancel feeOn-time63%
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