HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$86+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in September or February, booked 78 days in advance, depart on a Wednesday or Thursday 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 junio 12, 2025.

Round-trip from

$170
(American Airlines)

One-way from

$86
(iWofly)

Popular in

December

Cheapest in

September

Average price

$333

Good round-trip deal

$232 or less

Good one-way deal

$143 or less
From Chicago O'Hare Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
Search Deals

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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
mié. 8/136:50 amORD - SEA
Nonstop4h 29mAmerican Airlines
mar. 8/1912:45 amSEA - ORD
Nonstop4h 06mAmerican Airlines
Deal found 6/11$170
This United Airlines deal was found by Cheapflights users on 6/11. 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.
lun. 8/257:19 amORD - SEA
1 stop8h 09mUnited Airlines
jue. 8/284:55 pmSEA - ORD
Nonstop4h 00mUnited Airlines
Deal found 6/11$171
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/68:42 pmORD - SEA
Nonstop4h 42mAlaska Airlines
mar. 8/127:00 amSEA - ORD
1 stop14h 39mAlaska Airlines
Deal found 6/10$172
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
dom. 9/286:20 amORD - SEA
Nonstop4h 30mHawaiian Airlines
vie. 10/312:17 amSEA - ORD
Nonstop4h 04mHawaiian Airlines
Deal found 6/10$173
This Southwest deal was found by Cheapflights users on 6/10. 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. 8/133:00 pmORD - SEA
1 stop11h 05mSouthwest
mié. 8/201:40 pmSEA - ORD
1 stop8h 00mSouthwest
Deal found 6/10$174
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/97:08 amORD - SEA
1 stop11h 17mSpirit Airlines
mar. 7/225:30 pmSEA - ORD
1 stop10h 33mSpirit Airlines
Deal found 6/11$181
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/197:11 amORD - SEA
Nonstop4h 34mDelta
mié. 7/236:10 amSEA - ORD
Nonstop4h 01mDelta
Deal found 6/10$209
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/257:00 amORD - SEA
1 stop18h 44mMultiple Airlines
mar. 7/13:58 pmSEA - ORD
1 stop12h 14mMultiple Airlines
Deal found 6/10$260
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/207:20 amORD - SEA
1 stop17h 41mFrontier
sáb. 8/3012:40 pmSEA - ORD
1 stop8h 59mFrontier
Deal found 6/11$275
This Sun Country Air deal was found by Cheapflights users on 6/12. 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.
sáb. 7/56:09 pmORD - SEA
1 stop6h 38mSun Country Air
jue. 7/1011:59 pmSEA - ORD
1 stop15h 22mSun Country Air
Deal found 6/12$285

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 junio 12, 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

mié. 8/13

8:52 pm-11:40 pm

Nonstop4h 48m

Seattle/Tacoma Intl

mar. 8/19

12:45 am-6:51 am

Nonstop4h 06m

$170

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

lun. 8/25

7:19 am-1:28 pm

1 stop8h 09m

Seattle/Tacoma Intl

jue. 8/28

4:55 pm-10:55 pm

Nonstop4h 00m

$171

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 8/6

8:42 pm-11:24 pm

Nonstop4h 42m

Seattle/Tacoma Intl

mar. 8/12

7:00 am-11:39 pm

1 stop14h 39m

$172

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 8/13

3:00 pm-12:05 am

1 stop11h 05m

Seattle/Tacoma Intl

mié. 8/20

1:40 pm-11:40 pm

1 stop8h 00m

$174

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 7/30

8:42 pm-11:24 pm

Nonstop4h 42m

Seattle/Tacoma Intl

mié. 8/6

5:54 pm-11:59 pm

Nonstop4h 05m

$175

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 7/9

7:08 am-4:25 pm

1 stop11h 17m

Seattle/Tacoma Intl

mar. 7/22

5:30 pm-6:03 am

1 stop10h 33m

$181

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 7/9

6:00 am-8:37 am

Nonstop4h 37m

Seattle/Tacoma Intl

lun. 7/21

5:30 pm-6:03 am

1 stop10h 33m

$206

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

sáb. 7/19

7:11 am-9:45 am

Nonstop4h 34m

Seattle/Tacoma Intl

mié. 7/23

6:10 am-12:11 pm

Nonstop4h 01m

$209

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 8/20

7:20 am-11:01 pm

1 stop17h 41m

Seattle/Tacoma Intl

sáb. 8/30

12:40 pm-11:39 pm

1 stop8h 59m

$275

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

sáb. 6/28

6:10 am-8:56 pm

1 stop16h 46m

Seattle/Tacoma Intl

vie. 7/4

11:59 pm-5:09 pm

1 stop15h 10m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 20 results
1
2

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 June 9, 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 78 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 July is currently the most expensive (average of $391). 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 junio 12, 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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 16% 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 June 8, 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.

Weekly flight availability from Chicago O'Hare Intl Airport to Seattle

Explore weekly flight availability from O'Hare Intl to Seattle. 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 junio 12, 2025.

The most flights from ORD to SEA are scheduled on a Thursday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 junio 12, 2025.
Read through reviews of airlines operating flights from Chicago to Seattle, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • 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 American Airlines. Our recent data shows that you can find tickets from as low as $170 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $171 and $172 round-trip. Users have found that American Airlines is 40% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Seattle one-way?

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Seattle are Alaska Airlines ($86), Hawaiian Airlines ($90), and United Airlines ($95).

  • 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: Air France (91%), United Airlines (90%), British Airways( 83%).

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

    On average you can expect to pay $827 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is $85 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at $109.

  • 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 July is currently the most expensive (average of $391). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$87Average$243FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$105Average$236FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$194FlexibilityNo cancel feeOn-time62%
DeltaCheapest$139Average$268FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$292FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$161Average$328FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$169Average$328FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.