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$109+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in January or September, booked 78 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap 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 March 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Tue 5/129:42 pm
ORD
-
SEA
1 stop14h 07m
Multiple Airlines
Sat 5/1611:06 am
SEA
-
ORD
1 stop16h 29m
Multiple Airlines
Deal found 3/13$184
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/297:21 pm
ORD
-
SEA
1 stop24h 21m
Frontier
Tue 5/57:50 pm
SEA
-
ORD
1 stop22h 47m
Frontier
Deal found 3/17$192
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Tue 4/284:03 pm
ORD
-
SEA
2 stops43h 24m
Multiple Airlines
Tue 5/511:06 am
SEA
-
ORD
1 stop17h 33m
Multiple Airlines
Deal found 3/17$197
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/227:21 pm
ORD
-
SEA
1 stop24h 21m
Frontier
Tue 4/2810:57 am
SEA
-
ORD
1 stop16h 53m
Frontier
Deal found 3/15$203
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Mon 4/136:00 am
ORD
-
SEA
Nonstop4h 37m
Hawaiian Airlines
Sat 4/1812:35 am
SEA
-
ORD
Nonstop4h 04m
Hawaiian Airlines
Deal found 3/13$205
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Tue 5/129:42 pm
ORD
-
SEA
1 stop14h 07m
Frontier
Tue 5/1911:06 am
SEA
-
ORD
1 stop17h 33m
Frontier
Deal found 3/13$208
This Gotogate deal was found by Cheapflights users on 3/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:21 pm
ORD
-
SEA
1 stop24h 21m
Frontier
Fri 5/111:07 am
SEA
-
ORD
1 stop16h 43m
Frontier
Deal found 3/16$210
This Booking.com deal was found by Cheapflights users on 3/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:21 pm
ORD
-
SEA
1 stop24h 21m
Frontier
Fri 4/2411:07 am
SEA
-
ORD
1 stop16h 43m
Frontier
Deal found 3/15$212
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Thu 4/237:21 pm
ORD
-
SEA
1 stop24h 31m
Frontier
Tue 4/2810:57 am
SEA
-
ORD
1 stop16h 53m
Frontier
Deal found 3/13$214

Find 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 March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$184
(Kiwi.com)

One-way from

$109
(Trip.com)

Popular in

November

Cheapest in

January

Average price

$302

Good round-trip deal

$295 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Seattle/Tacoma Intl flights.
Search Deals
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 ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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

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 March 18, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Sat 5/2

4:20 pm-7:00 pm

Nonstop4h 40m

Seattle/Tacoma Intl

Sun 5/3

10:53 pm-5:03 am

Nonstop4h 10m

$217

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 4/30

8:04 pm-10:47 pm

Nonstop4h 43m

Seattle/Tacoma Intl

Sat 5/2

2:28 pm-8:40 pm

Nonstop4h 12m

$237

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 4/16

1:36 pm-9:50 pm

1 stop10h 14m

Seattle/Tacoma Intl

Mon 4/20

7:25 am-6:35 pm

1 stop9h 10m

$257

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Wed 5/6

3:52 pm-10:53 pm

1 stop9h 01m

Seattle/Tacoma Intl

Sat 5/9

5:42 pm-11:59 pm

Nonstop4h 17m

$266

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 4/21

11:55 am-10:30 pm

2 stops12h 35m

Seattle/Tacoma Intl

Sat 4/25

1:20 pm-10:20 pm

1 stop7h 00m

$272

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 4/23

9:54 pm-12:34 am

Nonstop4h 40m

Seattle/Tacoma Intl

Mon 4/27

7:37 pm-5:27 am

1 stop7h 50m

$275

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Fri 5/15

8:04 pm-10:47 pm

Nonstop4h 43m

Seattle/Tacoma Intl

Mon 5/18

7:36 pm-5:25 am

1 stop7h 49m

$305

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 4/9

9:54 pm-12:34 am

Nonstop4h 40m

Seattle/Tacoma Intl

Mon 4/13

3:48 pm-12:29 am

1 stop6h 41m

$305

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Thu 4/16

6:15 pm-11:30 pm

1 stop7h 15m

Seattle/Tacoma Intl

Wed 4/22

11:35 am-11:55 pm

2 stops10h 20m

$341

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

Tue 5/12

7:45 pm-12:12 am

1 stop6h 27m

Seattle/Tacoma Intl

Sat 5/23

9:05 am-4:51 pm

1 stop5h 46m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 24 resultsSorted by cheapest first
1
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Compare providers for flights from O'Hare Intl to Seattle

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 O'Hare Intl to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust 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 Chicago O'Hare Intl Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Seattle 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 Chicago O'Hare Intl Airport-Seattle 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 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 March 13, 2026.

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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $112). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of $178). 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 March 18, 2026.

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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 10% 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 March 14, 2026.

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

The best insider tips for Chicago O'Hare Intl Airport to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Seattle trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

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 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

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 March 18, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
7.9
Good
12,062 reviews
Alaska Airlines
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,286 reviews
Alaska Airlines
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,840 reviews
Alaska Airlines
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,435 reviews
Alaska Airlines
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
American Airlines
7.1
Good
11,468 reviews
Alaska Airlines
7.9
Good
12,062 reviews

Comfort

7.8

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 27 daily inbound flights from Chicago O'Hare Intl from 6 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 40m. United Airlines provides one of the quickest options available for as low as $217. 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 $84 on this airline. Additional options worth looking into are Delta and Frontier, starting at $108 and $153 round-trip. Users have found that Hawaiian Airlines is 69% 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 Hawaiian Airlines ($84), Delta ($84), and Frontier ($86).

  • 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: Brussels Airlines (81%), Scandinavian Airlines (78%), United Airlines( 78%).

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

    On average you can expect to pay $606 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is $98 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at $214.

  • 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $112). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of $178). 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
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Ellensburg
Tukwila
Fife
Lakewood
Aberdeen
Shoreline
Marysville
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from O'Hare Intl to Seattle

Discover the top 6 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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$84Average$228FlexibilityNo cancel feeOn-time85%
DeltaCheapest$108Average$251FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$153Average$258FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$168Average$292FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$170Average$306FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$170Average$311FlexibilityNo cancel feeOn-time71%

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