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O'Hare Intl

$93+ Cheap flights from Seattle (SEA) to O'Hare Intl (ORD)

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ORD
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Chicago O'Hare Intl are usually found in January or September, booked 43 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Seattle to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to O'Hare Intl (ORD). 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$194
(Kiwi.com)

One-way from

$93
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$308

Good round-trip deal

$300 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Chicago O'Hare Intl flights.
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From Seattle/Tacoma Intl to Chicago O'Hare Intl
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One-way flight from Seattle/Tacoma Intl to Chicago O'Hare Intl
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Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Chicago O'Hare Intl.
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Find flight deals from Seattle to O'Hare Intl

Cheapest flights from Seattle to O'Hare Intl
Explore the most affordable flight options available from Seattle to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:21 pmSEA - ORD
Nonstop4h 09mAlaska Airlines
Wed 12/178:55 amORD - SEA
1 stop10h 32mAlaska Airlines
Deal found 10/16$194
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:37 pmSEA - ORD
2 stops18h 58mFrontier
Sun 11/96:00 amORD - SEA
1 stop7h 57mFrontier
Deal found 10/16$195
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:08 pmSEA - ORD
1 stop7h 42mAlaska Airlines
Wed 12/103:35 pmORD - SEA
Nonstop4h 47mAlaska Airlines
Deal found 10/16$197
This Orbitz deal was found by Cheapflights users on 10/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/61:08 pmSEA - ORD
1 stop9h 07mMultiple Airlines
Wed 11/198:00 amORD - SEA
Nonstop4h 44mMultiple Airlines
Deal found 10/16$199
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:58 pmSEA - ORD
1 stop6h 52mFrontier
Thu 10/305:50 pmORD - SEA
2 stops41h 28mFrontier
Deal found 10/16$201
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:58 pmSEA - ORD
1 stop6h 52mFrontier
Mon 11/36:40 amORD - SEA
2 stops31h 27mFrontier
Deal found 10/16$202
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/61:08 pmSEA - ORD
1 stop9h 07mFrontier
Sun 11/910:43 pmORD - SEA
2 stops14h 12mFrontier
Deal found 10/16$203
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/61:08 pmSEA - ORD
1 stop9h 07mFrontier
Sat 11/87:15 amORD - SEA
2 stops14h 22mFrontier
Deal found 10/16$204
This Expedia deal was found by Cheapflights users on 10/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:58 pmSEA - ORD
1 stop9h 14mMultiple Airlines
Fri 10/315:53 pmORD - SEA
Nonstop4h 42mMultiple Airlines
Deal found 10/16$205
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:40 pmSEA - ORD
1 stop7h 21mAlaska Airlines
Tue 11/118:59 pmORD - SEA
1 stop14h 26mAlaska Airlines
Deal found 10/16$206
This Frontier deal was found by Cheapflights users on 10/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:16 amSEA - ORD
1 stop13h 15mFrontier
Wed 10/297:20 amORD - SEA
1 stop6h 53mFrontier
Deal found 10/15$207
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Mon 11/33:01 pmSEA - ORD
2 stops18h 13mFrontier
Fri 11/76:00 amORD - SEA
1 stop8h 13mFrontier
Deal found 10/15$208

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to O'Hare Intl 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 October 16, 2025.
Use the filters below to find and compare flights from Seattle to Chicago O'Hare Intl Airport that are best for you.

Fly from

Seattle

Fly to

O'Hare Intl

Route

Depart

Return

Price

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 12/10

12:18 am-6:21 am

Nonstop4h 03m

Chicago O'Hare Intl

Tue 12/16

3:05 pm-9:43 pm

1 stop8h 38m

$195

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 2/5

7:50 pm-1:10 pm

1 stop15h 20m

Chicago O'Hare Intl

Sun 2/8

3:25 pm-11:57 pm

1 stop10h 32m

$206

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sun 11/9

7:40 pm-5:01 am

1 stop7h 21m

Chicago O'Hare Intl

Fri 11/14

2:54 pm-9:48 pm

1 stop8h 54m

$206

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 1/1

12:55 am-9:25 am

1 stop6h 30m

Chicago O'Hare Intl

Tue 1/6

11:19 am-5:50 pm

1 stop8h 31m

$207

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 12/11

2:08 pm-11:50 pm

1 stop7h 42m

Chicago O'Hare Intl

Wed 12/17

8:55 am-5:27 pm

1 stop10h 32m

$216

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 11/6

9:04 am-6:50 pm

1 stop7h 46m

Chicago O'Hare Intl

Wed 11/12

7:10 am-9:50 am

Nonstop4h 40m

$217

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 11/12

6:15 pm-12:24 am

Nonstop4h 09m

Chicago O'Hare Intl

Wed 11/19

2:05 pm-6:48 pm

1 stop6h 43m

$217

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 12/24

11:15 pm-1:16 pm

1 stop12h 01m

Chicago O'Hare Intl

Tue 1/20

9:00 am-5:34 pm

1 stop10h 34m

$226

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 12/11

7:05 am-10:35 pm

1 stop13h 30m

Chicago O'Hare Intl

Tue 12/16

1:00 pm-10:30 pm

1 stop11h 30m

$228

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 3/10

11:25 am-11:10 pm

1 stop9h 45m

Chicago O'Hare Intl

Wed 3/11

9:00 am-5:36 pm

1 stop10h 36m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 24 results
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Compare providers for flights from Seattle to O'Hare Intl

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

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to O'Hare Intl. Price data was last updated on October 10, 2025.

Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Chicago O'Hare Intl Airport (average of $115). Flying from Seattle to Chicago O'Hare Intl Airport in May is currently the most expensive (average of $169). 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 ORD?

Find hourly flight availability from Seattle to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Chicago O'Hare Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to O'Hare Intl. Price data was last updated on October 12, 2025.

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

The best insider tips for Seattle to Chicago O'Hare Intl Airport 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 Seattle to Chicago O'Hare Intl Airport trip
Airlines
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, ideal for a comfortable journey.


Alaska's Wi-Fi is a flat fee, great for business travelers needing to work during flights.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

United's Economy Plus offers extra legroom, perfect for added comfort on domestic flights.


United's Polaris Lounges offer showers and dining, enhancing pre-flight comfort for premium passengers.

Read more about United Airlinesby Harriet Baskas
Airports
SEA

Use SEA Spot Saver for security screening appointments to reduce wait times. Sign up online a few days before your flight.

Read more about SEAby Brandon Schultz
ORD

Take the “L” train from downtown Chicago to ORD for a reliable and efficient airport transfer, avoiding traffic delays.

Read more about ORDby Ramsey Qubein
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

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, USA TODAY, 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.

Read more
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

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated October 16, 2025.
Read through reviews of airlines operating flights from Seattle to Chicago O'Hare Intl Airport, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,100 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,984 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,781 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,982 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,043 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Seattle/Tacoma Intl; the airport handles an average of 53 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Seattle airport to Chicago O'Hare Intl. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    There are many flights that can get you from Seattle to Chicago O'Hare Intl Airport in 4h 03m. Fly via Alaska Airlines or Delta to get the fastest option. Seattle and Chicago O'Hare Intl Airport are separated by a distance of 1715 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Spirit Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $107. Additional round-trip tickets that might be worth considering are offered by Delta and Hawaiian Airlines, with the lowest prices starting at $117 and $121, respectively. Spirit Airlines is priced at 65% lower than the current average price of a flight leaving 3 months from now.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Chicago O'Hare Intl Airport on time: Austrian Airlines (96%), Avianca (95%), WestJet (92%).

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

    Looking at all options, your cheapest flight can be booked for $101. While the most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl) can be booked for $156 on average, our data indicates $816 when flying from Seattle to Chicago O'Hare Intl Airport.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Chicago O'Hare Intl Airport (average of $115). Flying from Seattle to Chicago O'Hare Intl Airport in May is currently the most expensive (average of $169). 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
Schaumburg
Rosemont
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Racine
Oak Brook
Elk Grove Village
Beloit
Rockford
Naperville
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Seattle to O'Hare Intl

Discover the top 7 airlines that operate flights from Seattle to O'Hare Intl. 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$196FlexibilityNo cancel feeOn-time65%
DeltaCheapest$117Average$297FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$121Average$288FlexibilityNo cancel feeOn-time85%
FrontierCheapest$137Average$254FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$169Average$345FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$174Average$332FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$180Average$320FlexibilityNo cancel feeOn-time71%

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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.