What airlines fly to Chicago O'Hare Intl Airport?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 8 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 3h 36m to fly from State of Washington to Chicago O'Hare Intl Airport if you fly out of Spokane (the most popular airport in State of Washington) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Seattle and into Chicago O'Hare Intl Airport, then the flight time is around 3h 57m.

What is the cheapest airline that flies from Washington to Chicago O'Hare Intl?

Frontier, Southwest, and Delta are the most popular carriers operating from Washington to Chicago O'Hare Intl

How many operators does momondo search for flights from Washington to Chicago O'Hare Intl Airport?

There are 8 operators available for flights from Washington to Chicago O'Hare Intl Airport as of December 2025.

How old do you have to be to fly from Washington to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$90 Cheap Flights from State of Washington to Chicago O'Hare Intl Airport in 2025/26

Q: How many flights depart from State of Washington to Chicago O'Hare Intl Airport on average per day?

The number of flights available between State of Washington and Chicago O'Hare Intl Airport is 42 per day as of December 2025. The most frequent departure time is 10:00AM, with 62% of daily flights leaving at noon.

Q: How many flights depart from State of Washington to Chicago O'Hare Intl Airport on average per week?

The number of flights available between State of Washington and Chicago O'Hare Intl Airport is 294 per week as of December 2025. The most frequent departure day is Mon, with 23% of weekly flights leaving on this day.

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 am - 5:10 pm

SEA

ORD

4h 10mnonstop

6:06 pm - 8:56 pm

ORD

SEA

4h 50mnonstop

$176Alaska Airlines

Thu, Jan 8 - Mon, Jan 12

7:00 am - 1:08 pm

SEA

ORD

4h 08mnonstop

1:20 pm - 4:01 pm

ORD

SEA

4h 41mnonstop

$177United Airlines

Sat, Jan 17 - Wed, Jan 21

8:04 am - 2:15 pm

SEA

ORD

4h 11mnonstop

10:27 am - 1:08 pm

ORD

SEA

4h 41mnonstop

$178American Airlines

Thu, Jan 15 - Tue, Jan 20

12:19 pm - 9:24 pm

SEA

ORD

7h 05m1 stop

3:35 pm - 6:22 pm

ORD

SEA

4h 47mnonstop

$179Multiple Airlines

Fri, Jan 16 - Wed, Jan 21

12:19 pm - 9:24 pm

SEA

ORD

7h 05m1 stop

6:06 pm - 8:56 pm

ORD

SEA

4h 50mnonstop

$180Multiple Airlines

Thu, Jan 15 - Sun, Jan 18

9:00 pm - 5:02 am

SEA

ORD

6h 02m1 stop

8:00 am - 10:46 am

ORD

SEA

4h 46mnonstop

$181Alaska Airlines

Tue, Jan 6 - Wed, Jan 7

5:50 pm - 11:50 pm

SEA

ORD

4h 00mnonstop

3:44 pm - 10:15 pm

ORD

SEA

8h 31m1 stop

$182Hawaiian Airlines

Tue, Jan 27 - Wed, Jan 28

12:47 pm - 12:12 am

PDX

ORD

9h 25m1 stop

6:15 am - 12:23 pm

ORD

PDX

8h 08m1 stop

$233Frontier

Thu, Jan 1 - Thu, Jan 8

5:26 pm - 2:57 pm

PDX

ORD

19h 31m2 stops

6:02 pm - 7:23 am

ORD

PDX

15h 21m1 stop

$238Frontier

Sat, Jan 10 - Sat, Jan 17

3:03 pm - 11:50 pm

EAT

ORD

6h 47m1 stop

6:06 pm - 12:05 am

ORD

EAT

7h 59m1 stop

$293Hawaiian Airlines

Wed, Jan 28 - Wed, Feb 4

Frontier flights from State of Washington to Chicago O'Hare Intl Airport

Our best Frontier deals on State of Washington to Chicago O'Hare Intl Airport flight tickets

Frontier

Jan 15

SEA12:19 pmSeattle/Tacoma Intl

7h 05m

1 stop

ORD9:24 pmChicago O'Hare Intl

Jan 22

ORD7:41 pmChicago O'Hare Intl

17h 38m

1 stop

SEA11:19 amSeattle/Tacoma Intl

$189

Find similar

Frontier

Jan 1

PDX12:47 pmPortland

9h 25m

1 stop

ORD12:12 amChicago O'Hare Intl

Jan 8

ORD6:15 amChicago O'Hare Intl

8h 08m

1 stop

PDX12:23 pmPortland

$233

Find similar

Frontier

Jan 10

PDX5:26 pmPortland

19h 31m

2 stops

ORD2:57 pmChicago O'Hare Intl

Jan 17

ORD6:02 pmChicago O'Hare Intl

15h 21m

1 stop

PDX7:23 amPortland

$238

Find similar

Alaska Airlines flights from State of Washington to Chicago O'Hare Intl Airport

Our best Alaska Airlines deals on State of Washington to Chicago O'Hare Intl Airport flight tickets

Alaska Airlines

Jan 8

SEA11:00 amSeattle/Tacoma Intl

4h 10m

ORD5:10 pmChicago O'Hare Intl

Jan 12

ORD6:06 pmChicago O'Hare Intl

4h 50m

SEA8:56 pmSeattle/Tacoma Intl

$176

Find similar

Alaska Airlines

Jan 6

SEA9:00 pmSeattle/Tacoma Intl

6h 02m

1 stop

ORD5:02 amChicago O'Hare Intl

Jan 7

ORD8:00 amChicago O'Hare Intl

4h 46m

SEA10:46 amSeattle/Tacoma Intl

$181

Find similar

Alaska Airlines

Jan 5

SEA6:00 amSeattle/Tacoma Intl

4h 13m

ORD12:13 pmChicago O'Hare Intl

Jan 8

ORD3:35 pmChicago O'Hare Intl

4h 47m

SEA6:22 pmSeattle/Tacoma Intl

$187

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 1/8

11:00 am-5:10 pm

Nonstop4h 10m

Chicago O'Hare Intl

Mon 1/12

6:06 pm-8:56 pm

Nonstop4h 50m

$176

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 1/17

7:00 am-1:08 pm

Nonstop4h 08m

Chicago O'Hare Intl

Wed 1/21

1:20 pm-4:01 pm

Nonstop4h 41m

$177

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 1/15

8:04 am-2:15 pm

Nonstop4h 11m

Chicago O'Hare Intl

Tue 1/20

10:27 am-1:08 pm

Nonstop4h 41m

$178

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Fri 1/16

12:19 pm-9:24 pm

1 stop7h 05m

Chicago O'Hare Intl

Wed 1/21

3:35 pm-6:22 pm

Nonstop4h 47m

$179

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Thu 1/15

12:19 pm-9:24 pm

1 stop7h 05m

Chicago O'Hare Intl

Sun 1/18

6:06 pm-8:56 pm

Nonstop4h 50m

$180

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 1/6

9:00 pm-5:02 am

1 stop6h 02m

Chicago O'Hare Intl

Wed 1/7

8:00 am-10:46 am

Nonstop4h 46m

$181

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 1/27

5:50 pm-11:50 pm

Nonstop4h 00m

Chicago O'Hare Intl

Wed 1/28

3:44 pm-10:15 pm

1 stop8h 31m

$182

PortlandChicago

PDX - ORD

PDXORD

Portland

Thu 1/1

12:47 pm-12:12 am

1 stop9h 25m

Chicago O'Hare Intl

Thu 1/8

6:15 am-12:23 pm

1 stop8h 08m

$233

PortlandChicago

PDX - ORD

PDXORD

Portland

Sat 1/10

5:26 pm-2:57 pm

2 stops19h 31m

Chicago O'Hare Intl

Sat 1/17

6:02 pm-7:23 am

1 stop15h 21m

$238

WenatcheeChicago

EAT - ORD

EATORD

Wenatchee Pangborn Field

Wed 1/28

3:03 pm-11:50 pm

1 stop6h 47m

Chicago O'Hare Intl

Wed 2/4

6:06 pm-12:05 am

1 stop7h 59m

$293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from State of Washington averaging around $259.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $391. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $486.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $293 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $450. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Washington to Chicago O'Hare Intl flight route?

Fly from Seattle/Tacoma Intl to Chicago O'Hare Intl for the best Washington - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from State of Washington for as low as $265 on momondo.

What cabin class options are available on Washington to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Washington to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap State of Washington to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Chicago O'Hare Intl Airport

Best Price Found	$170
Fastest flight time	3h 36m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from State of Washington in the past 72 hours is $170. The best round-trip flight deal from State of Washington to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $315.

The fastest flight from State of Washington to Chicago O'Hare Intl Airport takes 3h 36m

Direct flights go from State of Washington to Chicago O'Hare Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Washington to Chicago O'Hare Intl Airport?
Prices for flights from Washington to Chicago O'Hare Intl Airport are updated daily.
How many operators does momondo search for flights from Washington to Chicago O'Hare Intl Airport?
There are 8 operators available for flights from Washington to Chicago O'Hare Intl Airport as of December 2025.
How old do you have to be to fly from Washington to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from State of Washington to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Chicago O'Hare Intl Airport is Boeing 737-800, representing 23.21% of all bookings. The subsequent popular models are Airbus A321neo at 16.09%, Boeing 737 MAX 9 at 10.93%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 8.52%.

Best airlines flying from State of Washington to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from State of Washington to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $107	Free Cancellation	Rating 6.3 8,187 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $121	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $123	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Frontier	PriceFrom $137	Free Cancellation	Rating 5.8 3,081 reviews	Search Frontier flights
United Airlines	PriceFrom $167	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $169	Free Cancellation	Rating 8.0 11,455 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Southwest	PriceFrom $194	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights

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Why use momondo?

Why should I use momondo to find a flight deal from Washington to Chicago?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Chicago. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to Chicago with flexible booking policies on momondo?

momondo does allow users to show only those flights to Chicago from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Chicago?

Once all potential Washington to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Washington to Chicago from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Chicago departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from State of Washington to Chicago O'Hare Intl Airport

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Our best Alaska Airlines deals on State of Washington to Chicago O'Hare Intl Airport flight tickets

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How to get the cheapest flight ticket from State of Washington to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from State of Washington averaging around $259.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Washington to Chicago O'Hare Intl flight route?

Fly from Seattle/Tacoma Intl to Chicago O'Hare Intl for the best Washington - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

What cabin class options are available on Washington to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Washington to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Washington to Chicago O'Hare Intl?

Frontier, Southwest, and Delta are the most popular carriers operating from Washington to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from State of Washington to Chicago O'Hare Intl Airport on average per day?

The number of flights available between State of Washington and Chicago O'Hare Intl Airport is 42 per day as of December 2025. The most frequent departure time is 10:00AM, with 62% of daily flights leaving at noon.

How many flights depart from State of Washington to Chicago O'Hare Intl Airport on average per week?

The number of flights available between State of Washington and Chicago O'Hare Intl Airport is 294 per week as of December 2025. The most frequent departure day is Mon, with 23% of weekly flights leaving on this day.

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap State of Washington to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Chicago O'Hare Intl Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington to Chicago O'Hare Intl Airport?

How many operators does momondo search for flights from Washington to Chicago O'Hare Intl Airport?

How old do you have to be to fly from Washington to Chicago O'Hare Intl Airport?

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from State of Washington to Chicago O'Hare Intl Airport?

Best airlines flying from State of Washington to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from State of Washington to Chicago O'Hare Intl Airport with momondo

Traveling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Chicago?

Can I find flights from Washington to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Chicago?

I’m not ready to book a flight from Washington to Chicago right now. Can momondo alert me if prices change?

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

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