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O'Hare Intl

$85+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ORD
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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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”
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Chicago O'Hare Intl are usually found in September or October, booked 85 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$168
(Alaska Airlines)

One-way from

$85
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$333

Good round-trip deal

$299 or less

Good one-way deal

$170 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 ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 25, 2025.

This Trip.com deal was found by Cheapflights users on 3/22. 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.
Wed 5/73:58 pmSEA - ORD
Nonstop4h 01mHawaiian Airlines
Wed 5/146:00 amORD - SEA
Nonstop4h 30mHawaiian Airlines
Deal found 3/22$165
This Alaska Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:51 pmSEA - ORD
Nonstop4h 08mAlaska Airlines
Tue 9/98:42 pmORD - SEA
Nonstop4h 40mAlaska Airlines
Deal found 3/24$168
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1911:35 amSEA - ORD
Nonstop4h 08mDelta
Sat 4/267:50 amORD - SEA
Nonstop4h 44mDelta
Deal found 3/24$169
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 4/267:00 amSEA - ORD
Nonstop4h 06mUnited Airlines
Tue 4/297:00 amORD - SEA
1 stop8h 59mUnited Airlines
Deal found 3/24$175
This Mytrip deal was found by Cheapflights users on 3/23. 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.
Tue 5/612:30 pmSEA - ORD
1 stop20h 25mSpirit Airlines
Tue 5/139:02 pmORD - SEA
1 stop19h 23mSpirit Airlines
Deal found 3/23$176
This Expedia deal was found by Cheapflights users on 3/23. 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.
Thu 4/248:56 pmSEA - ORD
1 stop7h 37mMultiple Airlines
Wed 4/309:00 amORD - SEA
Nonstop4h 32mMultiple Airlines
Deal found 3/23$192
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Mon 4/2111:59 pmSEA - ORD
Nonstop4h 05mAmerican Airlines
Tue 4/2910:05 amORD - SEA
Nonstop4h 38mAmerican Airlines
Deal found 3/23$219
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 4/222:50 pmSEA - ORD
1 stop6h 15mSouthwest
Tue 4/297:00 amORD - SEA
1 stop10h 10mSouthwest
Deal found 3/23$238
This Sun Country Air deal was found by Cheapflights users on 3/24. 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.
Thu 11/136:36 pmSEA - ORD
1 stop21h 50mSun Country Air
Sun 11/166:08 pmORD - SEA
1 stop25h 07mSun Country Air
Deal found 3/24$275
This Frontier deal was found by Cheapflights users on 3/24. 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.
Mon 4/71:56 pmSEA - ORD
1 stop8h 41mFrontier
Thu 4/106:45 amORD - SEA
1 stop7h 11mFrontier
Deal found 3/24$298

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 March 25, 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 5/7

3:58 pm-9:59 pm

Nonstop4h 01m

Chicago O'Hare Intl

Wed 5/14

6:00 am-8:30 am

Nonstop4h 30m

$165

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 4/19

11:35 am-5:43 pm

Nonstop4h 08m

Chicago O'Hare Intl

Sat 4/26

7:50 am-10:34 am

Nonstop4h 44m

$169

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 4/26

7:00 am-1:06 pm

Nonstop4h 06m

Chicago O'Hare Intl

Tue 4/29

7:00 am-1:59 pm

1 stop8h 59m

$175

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 5/6

12:30 pm-10:55 am

1 stop20h 25m

Chicago O'Hare Intl

Tue 5/13

9:02 pm-2:25 pm

1 stop19h 23m

$176

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 4/24

8:56 pm-6:33 am

1 stop7h 37m

Chicago O'Hare Intl

Wed 4/30

9:00 am-11:32 am

Nonstop4h 32m

$192

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 5/3

7:00 am-7:10 pm

1 stop10h 10m

Chicago O'Hare Intl

Wed 5/7

6:00 am-8:30 am

Nonstop4h 30m

$201

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Mon 4/21

11:59 pm-6:04 am

Nonstop4h 05m

Chicago O'Hare Intl

Tue 4/29

10:05 am-12:43 pm

Nonstop4h 38m

$219

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 4/22

2:50 pm-11:05 pm

1 stop6h 15m

Chicago O'Hare Intl

Tue 4/29

7:00 am-3:10 pm

1 stop10h 10m

$238

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Mon 4/7

1:56 pm-12:37 am

1 stop8h 41m

Chicago O'Hare Intl

Fri 4/11

5:01 am-3:26 pm

1 stop12h 25m

$298

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Fri 5/23

11:59 pm-12:27 pm

1 stop10h 28m

Chicago O'Hare Intl

Mon 5/26

9:05 pm-9:15 am

1 stop14h 10m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 20 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust 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.

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

Plan to arrive at SEA two hours before your flight. Use SEA Spot Saver for advance security screening appointments to reduce wait times.

Read more about SEAby Brandon Schultz
ORD

For a quick city transfer, take the 'L' train from ORD. It's often faster than taxis due to Chicago traffic.

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

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 March 21, 2025.

Booking 85 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, August is the cheapest month in which you can book a flight from Seattle to Chicago O'Hare Intl Airport (average of $245). Flying from Seattle to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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 March 25, 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 42% 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 March 16, 2025.

Travelers seeking maximum savings on their Seattle to Chicago O'Hare Intl Airport flight should consider departing on Wednesday afternoons 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 Seattle to Chicago O'Hare Intl Airport

Explore weekly flight availability from Seattle to O'Hare Intl. 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 March 25, 2025.

The most flights from SEA to ORD are scheduled on a Tuesday (43 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

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

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

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

Reviews of airlines servicing 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 March 25, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Chicago have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,785 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 29 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.

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

    Flying on Alaska Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $168. Additional round-trip tickets that might be worth considering are offered by Hawaiian Airlines and Delta, with the lowest prices starting at $169 and $170, respectively. Alaska Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $85 on United Airlines. Other airlines that offer cheap prices include Spirit Airlines from $88 and Delta from $90 one-way.

  • 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: United Airlines (91%), Avianca (91%), American Airlines (89%).

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

    Looking at all options, your cheapest flight can be booked for $105. While the most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl) can be booked for $158 on average our data indicates $1,058 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, August is the cheapest month in which you can book a flight from Seattle to Chicago O'Hare Intl Airport (average of $245). Flying from Seattle to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$235FlexibilityNo cancel feeOn-time65%
DeltaCheapest$107Average$315FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$119Average$278FlexibilityNo cancel feeOn-time85%
FrontierCheapest$138Average$249FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$156Average$326FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$156Average$354FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$160Average$331FlexibilityNo cancel feeOn-time75%
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