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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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ORD
Feb 24 — Mar 31
Mon 2/24
Mon 3/3
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Chicago O'Hare Intl are usually found in September or October, booked 89 days in advance, depart on a Wednesday or Thursday and return on a Thursday

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 February 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$172
(Mytrip)

One-way from

$85
(Delta)

Popular in

December

Cheapest in

September

Average price

$278

Good round-trip deal

$323 or less

Good one-way deal

$185 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. 5% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 19, 2025.

This Mytrip deal was found by Cheapflights users on 2/18. 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.
Mon 3/319:48 amSEA - ORD
2 stops32h 25mSpirit Airlines
Wed 4/97:41 amORD - SEA
1 stop14h 20mSpirit Airlines
Deal found 2/18$172
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Sat 3/1512:03 pmSEA - ORD
1 stop15h 01mFrontier
Sun 3/167:59 pmORD - SEA
1 stop16h 53mFrontier
Deal found 2/18$173
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 3/116:15 amSEA - ORD
1 stop8h 43mUnited Airlines
Wed 3/128:09 pmORD - SEA
Nonstop4h 44mUnited Airlines
Deal found 2/18$175
This Booking.com deal was found by Cheapflights users on 2/19. 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.
Sun 3/238:59 pmSEA - ORD
1 stop13h 40mMultiple Airlines
Wed 3/2612:30 pmORD - SEA
1 stop8h 39mMultiple Airlines
Deal found 2/19$177
This SmartFares deal was found by Cheapflights users on 2/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:03 pmSEA - ORD
Nonstop3h 56mAlaska Airlines
Wed 3/127:45 amORD - SEA
Nonstop4h 43mAlaska Airlines
Deal found 2/18$183
This Delta deal was found by Cheapflights users on 2/18. 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 3/155:55 pmSEA - ORD
Nonstop3h 58mDelta
Wed 3/197:30 amORD - SEA
Nonstop4h 49mDelta
Deal found 2/18$193
This Trip.com deal was found by Cheapflights users on 2/18. 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.
Thu 3/66:03 pmSEA - ORD
Nonstop3h 56mHawaiian Airlines
Wed 3/127:45 amORD - SEA
Nonstop4h 43mHawaiian Airlines
Deal found 2/18$197
This American Airlines deal was found by Cheapflights users on 2/19. 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 4/1412:59 amSEA - ORD
1 stop8h 08mAmerican Airlines
Tue 4/227:35 amORD - SEA
Nonstop4h 40mAmerican Airlines
Deal found 2/19$209

Find flights from Seattle to O'Hare Intl within your budget

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 February 19, 2025.

Fly from

Seattle

Fly to

O'Hare Intl

Route

Depart

Return

Price

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Mon 3/31

9:48 am-8:13 pm

2 stops32h 25m

Chicago O'Hare Intl

Wed 4/9

7:41 am-8:01 pm

1 stop14h 20m

$172

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 3/15

12:03 pm-5:04 am

1 stop15h 01m

Chicago O'Hare Intl

Sun 3/16

7:59 pm-10:52 am

1 stop16h 53m

$173

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 3/11

6:15 am-4:58 pm

1 stop8h 43m

Chicago O'Hare Intl

Wed 3/12

8:09 pm-10:53 pm

Nonstop4h 44m

$175

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sun 3/23

8:59 pm-12:39 pm

1 stop13h 40m

Chicago O'Hare Intl

Wed 3/26

12:30 pm-7:09 pm

1 stop8h 39m

$177

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 3/19

7:55 am-2:16 pm

Nonstop4h 21m

Chicago O'Hare Intl

Tue 3/25

7:16 pm-10:00 pm

Nonstop4h 44m

$189

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 3/15

5:55 pm-11:53 pm

Nonstop3h 58m

Chicago O'Hare Intl

Tue 3/18

7:30 am-10:19 am

Nonstop4h 49m

$193

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 3/6

11:46 am-6:00 pm

Nonstop4h 14m

Chicago O'Hare Intl

Wed 3/12

7:45 am-10:28 am

Nonstop4h 43m

$197

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Mon 4/14

12:59 am-11:07 am

1 stop8h 08m

Chicago O'Hare Intl

Tue 4/22

7:35 am-10:15 am

Nonstop4h 40m

$209

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 3/19

7:15 am-1:24 pm

Nonstop4h 09m

$85

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 3/26

9:48 am-1:38 am

2 stops13h 50m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 18 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 February.
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
FareScanPrice 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.

Travel insights for flights from Seattle to O'Hare Intl

Get recent, data-driven insights about flights from Seattle to O'Hare Intl including ideal travel times, pricing trends, and more.

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 February 14, 2025.

Booking 89 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 $321). 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 February 19, 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 44% 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 February 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 February 19, 2025.

The most flights from SEA to ORD are scheduled on a Wednesday (34 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (25 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 February 19, 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,413 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,691 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,236 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,771 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 28 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 6 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 Spirit Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $172. Additional round-trip tickets that might be worth considering are offered by Frontier and United Airlines, with the lowest prices starting at $173 and $175, respectively. Spirit Airlines is priced at 44% 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 Delta. Other airlines that offer cheap prices include Spirit Airlines from $88 and Frontier 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: Royal Jordanian (100%), United Airlines (94%), SWISS (93%).

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

    Looking at all options, your cheapest flight can be booked for $95. While the most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl) can be booked for $125 on average our data indicates $793 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 $321). 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.

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Top 6 airlines flying from Seattle to O'Hare Intl

Discover the top 6 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 February 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$235FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$314FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$138Average$254FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$146Average$331FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$147Average$332FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$157Average$358FlexibilityNo cancel feeOn-time69%
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