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$96+ Cheap flights from O'Hare Intl (ORD) to Seattle (SEA)

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in September or February, booked 84 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Seattle (SEA). 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 septiembre 11, 2025.

Round-trip from

$176
(Southwest)

One-way from

$96
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$219

Good round-trip deal

$243 or less

Good one-way deal

$147 or less
From Chicago O'Hare Intl to Seattle/Tacoma Intl
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One-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 6% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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Find flight deals from O'Hare Intl to Seattle

Cheapest flights from O'Hare Intl to Seattle
Explore the most affordable flight options available from O'Hare Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
lun. 11/246:00 amORD - SEA
Nonstop4h 37mAlaska Airlines
jue. 11/2710:53 amSEA - ORD
Nonstop4h 13mAlaska Airlines
Deal found 9/11$176
This United Airlines deal was found by Cheapflights users on 9/11. 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.
sáb. 10/114:10 pmORD - SEA
Nonstop4h 39mUnited Airlines
sáb. 10/187:37 pmSEA - ORD
1 stop8h 18mUnited Airlines
Deal found 9/11$177
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
mar. 11/182:05 pmORD - SEA
1 stop6h 43mAlaska Airlines
jue. 11/2710:53 amSEA - ORD
Nonstop4h 13mAlaska Airlines
Deal found 9/11$179
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
dom. 10/126:50 amORD - SEA
1 stop26h 43mMultiple Airlines
mié. 10/155:50 pmSEA - ORD
Nonstop4h 09mMultiple Airlines
Deal found 9/10$180
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:20 amORD - SEA
Nonstop4h 32mHawaiian Airlines
vie. 10/312:17 amSEA - ORD
Nonstop4h 07mHawaiian Airlines
Deal found 9/10$181
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
vie. 10/176:00 amORD - SEA
Nonstop4h 27mAlaska Airlines
dom. 10/1912:17 amSEA - ORD
Nonstop4h 07mAlaska Airlines
Deal found 9/11$182
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:50 amORD - SEA
1 stop7h 17mFrontier
jue. 10/231:02 pmSEA - ORD
1 stop8h 51mFrontier
Deal found 9/10$183
This Trip.com deal was found by Cheapflights users on 9/11. 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.
dom. 10/266:00 amORD - SEA
Nonstop4h 40mHawaiian Airlines
dom. 11/23:31 pmSEA - ORD
Nonstop4h 09mHawaiian Airlines
Deal found 9/11$184
This American Airlines deal was found by Cheapflights users on 9/11. 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.
vie. 10/109:50 pmORD - SEA
Nonstop4h 37mAmerican Airlines
mar. 10/146:10 amSEA - ORD
Nonstop4h 12mAmerican Airlines
Deal found 9/11$185
This Southwest deal was found by Cheapflights users on 9/10. 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.
mié. 10/2212:40 pmORD - SEA
2 stops12h 20mSouthwest
sáb. 10/255:00 amSEA - ORD
1 stop6h 05mSouthwest
Deal found 9/10$186
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/147:15 amORD - SEA
1 stop6h 52mFrontier
sáb. 10/188:43 pmSEA - ORD
1 stop10h 53mFrontier
Deal found 9/11$187
This Delta deal was found by Cheapflights users on 9/8. 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.
vie. 10/316:00 pmORD - SEA
Nonstop4h 45mDelta
mar. 11/45:55 pmSEA - ORD
Nonstop3h 55mDelta
Deal found 9/8$188

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Seattle 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 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Seattle that are best for you.

Fly from

O'Hare Intl

Fly to

Seattle

Route

Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

vie. 10/3

2:07 pm-8:35 pm

1 stop8h 28m

Seattle/Tacoma Intl

mar. 11/4

6:15 pm-12:24 am

Nonstop4h 09m

$180

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

sáb. 11/22

6:15 pm-11:10 pm

1 stop6h 55m

Seattle/Tacoma Intl

jue. 11/27

10:53 am-4:56 pm

Nonstop4h 03m

$183

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

vie. 10/3

1:01 pm-3:35 pm

Nonstop4h 34m

Seattle/Tacoma Intl

sáb. 10/4

12:17 am-6:24 am

Nonstop4h 07m

$191

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

jue. 9/25

7:10 am-9:45 am

Nonstop4h 35m

Seattle/Tacoma Intl

mié. 10/8

5:55 pm-11:50 pm

Nonstop3h 55m

$194

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

vie. 10/24

8:00 am-10:40 am

Nonstop4h 40m

Seattle/Tacoma Intl

lun. 10/27

12:20 am-6:22 am

Nonstop4h 02m

$207

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

vie. 10/24

7:37 am-10:15 am

Nonstop4h 38m

Seattle/Tacoma Intl

mar. 10/28

5:55 pm-11:50 pm

Nonstop3h 55m

$207

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

sáb. 10/18

5:01 am-9:59 am

1 stop6h 58m

Seattle/Tacoma Intl

dom. 10/19

7:00 am-1:15 pm

Nonstop4h 15m

$217

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

jue. 9/25

7:10 am-9:45 am

Nonstop4h 35m

Seattle/Tacoma Intl

mar. 9/30

6:00 am-3:01 pm

1 stop7h 01m

$219

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mar. 11/18

2:05 pm-6:48 pm

1 stop6h 43m

Seattle/Tacoma Intl

sáb. 11/22

12:25 am-6:28 am

Nonstop4h 03m

$221

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

vie. 11/21

6:13 pm-9:00 pm

Nonstop4h 47m

Seattle/Tacoma Intl

dom. 11/23

7:20 am-1:34 pm

Nonstop4h 14m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 24 results
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The best insider tips for Chicago O'Hare Intl Airport to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Seattle trip
Airports
ORD

For a quick departure, use the "L" train to reach ORD, avoiding Chicago traffic delays common with taxis and rideshares.

Read more about ORDby Ramsey Qubein
SEA

Take the Link light rail from SEA to downtown Seattle for an affordable and convenient 40-minute journey.

Read more about SEAby Brandon Schultz
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from O'Hare Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from O'Hare Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Seattle. Price data was last updated on August 29, 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 84 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 Chicago O'Hare Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $238). Flying from Chicago O'Hare Intl Airport to Seattle in June is currently the most expensive (average of $388). 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 ORD to SEA?

Find hourly flight availability from O'Hare Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 14% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Seattle. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated septiembre 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Chicago O'Hare Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Seattle. 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 into for flights to Seattle from Chicago O'Hare Intl?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 45 daily inbound flights from Chicago O'Hare Intl from 7 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Seattle?

    A quick flight from Chicago O'Hare Intl Airport to Seattle can take about 4h 34m. Alaska Airlines provides one of the quickest options available for as low as $191. The distance between Chicago O'Hare Intl Airport and Seattle is about 1715 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Seattle round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Seattle is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $90 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $97 and $121 round-trip. Users have found that Hawaiian Airlines is 68% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Seattle?

    Before booking your flight to Seattle from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: Delta (87%), Air France (87%), KLM( 83%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Seattle?

    On average you can expect to pay $687 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is $94 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at $118.

  • Can I find deals for flights from O'Hare Intl to Seattle that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Seattle?

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

  • Can I find deals for business class flights from O'Hare Intl to Seattle?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Seattle 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 Chicago O'Hare Intl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $238). Flying from Chicago O'Hare Intl Airport to Seattle in June is currently the most expensive (average of $388). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
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Shoreline

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Top 7 airlines flying from O'Hare Intl to Seattle

Discover the top 7 airlines that operate flights from O'Hare Intl to Seattle. 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 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$90Average$250FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$97Average$202FlexibilityNo cancel feeOn-time65%
DeltaCheapest$121Average$262FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$122Average$250FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$168Average$294FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$170Average$323FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$325FlexibilityNo cancel feeOn-time69%

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