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Cheap flights from Chicago to Seattle from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Seattle departing on 4/29. 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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Sun 4/28

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Cheap Chicago to Seattle (CHI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Seattle

Best Price Found

$70

Fastest flight time

4h 27m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Chicago in the past 72 hours is $70. The best round-trip flight deal from Chicago to Seattle found on momondo in the last 72 hours is $114.
The fastest flight from Chicago to Seattle takes 4h 27m
Direct flights go from Chicago to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

How to get the cheapest flight ticket from Chicago to Seattle

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

What is the cheapest month to fly from Chicago to Seattle?

January. The cheapest time of year to fly to Seattle from Chicago is January. Most expensive is July

What is the cheapest day to depart Chicago for Seattle?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Chicago to Seattle?

In the morning. Chicago to Seattle flights are approximately 9% more expensive in the evening than in the morning

What is the cheapest airline that flies to Seattle from Chicago?

Frontier. Alaska Airlines, American Airlines, and Frontier are the most popular carriers operating from Chicago to Seattle

What is the cheapest Chicago to Seattle flight route?

Chicago Midway - Seattle/Tacoma Intl. Fly from Chicago Midway to Seattle/Tacoma Intl for the best Chicago - Seattle flight prices

How far in advance should you book Chicago to Seattle flights?

59 days before. The cheapest time to buy a flight from Chicago to Seattle is approximately 59 days to departure

How many flights depart from Chicago to Seattle on average per day?

The number of flights available between Chicago and Seattle is 22 per day as of April 2024. The most frequent departure time is 5:00PM, with 53% of daily flights leaving in the afternoon.

How many flights depart from Chicago to Seattle on average per week?

160 flights are operational weekly from Chicago to Seattle as of April 2024. The most popular departure day for this route is Monday, with 18% of flights per week taking off on this day.

What cabin class options are available on Chicago to Seattle flights?

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

Can stopping save me money on Chicago to Seattle flights?

You could potentially save up to 17% on your flight if you consider stops on a Chicago to Seattle flight.

When traveling from Chicago to Seattle, the most popular airport to fly into is Seattle/Tacoma Intl Airport. The majority of travelers flying into Seattle/Tacoma Intl Airport from Chicago are departing from Chicago O'Hare Intl Airport. If you are looking for an alternate airport near Chicago O'Hare Intl Airport, Chicago Midway Airport is a great option and is located in Chicago. The least expensive flight option from Chicago to Seattle will typically be ORD — SEA during the month of April with an average price of $136 RT.

Chicago O'Hare Intl Airport (ORD) to Seattle/Tacoma Intl Airport (SEA)$136
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Chicago Midway Airport (MDW) to Seattle/Tacoma Intl Airport (SEA)$137
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Easily compare round-trip flights from Chicago to Seattle

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to Seattle by changing tabs
Frontier
Apr 29
MDW5:30 amChicago Midway
10h 15m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
May 6
SEA5:02 pmSeattle/Tacoma Intl
27h 03m
1 stop
MDW10:05 pmChicago Midway
Alaska Airlines
May 15
ORD6:00 amChicago O'Hare Intl
4h 34m
SEA8:34 amSeattle/Tacoma Intl
May 22
SEA11:34 pmSeattle/Tacoma Intl
4h 06m
ORD5:40 amChicago O'Hare Intl
Multiple Airlines
May 15
ORD6:27 pmChicago O'Hare Intl
16h 03m
1 stop
SEA8:30 amSeattle/Tacoma Intl
May 22
SEA11:34 pmSeattle/Tacoma Intl
4h 06m
ORD5:40 amChicago O'Hare Intl
United Airlines
May 3
ORD7:10 amChicago O'Hare Intl
8h 33m
1 stop
SEA1:43 pmSeattle/Tacoma Intl
May 6
SEA4:41 pmSeattle/Tacoma Intl
3h 58m
ORD10:39 pmChicago O'Hare Intl
American Airlines
May 7
ORD3:20 pmChicago O'Hare Intl
9h 21m
1 stop
SEA10:41 pmSeattle/Tacoma Intl
May 14
SEA11:59 pmSeattle/Tacoma Intl
4h 12m
ORD6:11 amChicago O'Hare Intl
Delta
Sep 6
ORD6:50 pmChicago O'Hare Intl
4h 38m
SEA9:28 pmSeattle/Tacoma Intl
Sep 10
SEA6:00 pmSeattle/Tacoma Intl
3h 58m
ORD11:58 pmChicago O'Hare Intl

Find the cheapest one-way flights from Chicago to Seattle

If you're looking for one-way flights from Chicago to Seattle, view some of our deals below provided by Alaska Airlines, American Airlines and Delta
Frontier
Apr 29
MDW9:55 pmChicago Midway
13h 49m
1 stop
SEA9:44 amSeattle/Tacoma Intl
Alaska Airlines
May 15
ORD6:00 amChicago O'Hare Intl
4h 34m
SEA8:34 amSeattle/Tacoma Intl
Delta
Jun 19
ORD2:10 pmChicago O'Hare Intl
4h 30m
SEA4:40 pmSeattle/Tacoma Intl

Search last-minute flights to Seattle from Chicago

Find and compare round-trip flight prices for your last-minute flight from Chicago to Seattle
Frontier
Apr 25
MDW9:19 pmChicago Midway
13h 21m
1 stop
SEA8:40 amSeattle/Tacoma Intl
May 1
SEA5:58 pmSeattle/Tacoma Intl
12h 38m
1 stop
MDW8:36 amChicago Midway
Multiple Airlines
Apr 25
ORD11:58 pmChicago O'Hare Intl
10h 47m
1 stop
SEA8:45 amSeattle/Tacoma Intl
May 4
SEA2:55 pmSeattle/Tacoma Intl
8h 01m
1 stop
ORD12:56 amChicago O'Hare Intl
Alaska Airlines
Apr 26
ORD8:00 amChicago O'Hare Intl
4h 34m
SEA10:34 amSeattle/Tacoma Intl
May 11
SEA5:58 pmSeattle/Tacoma Intl
4h 00m
ORD11:58 pmChicago O'Hare Intl
Spirit Airlines
Apr 25
ORD11:58 pmChicago O'Hare Intl
10h 47m
1 stop
SEA8:45 amSeattle/Tacoma Intl
May 1
SEA9:38 amSeattle/Tacoma Intl
18h 51m
1 stop
ORD6:29 amChicago O'Hare Intl
United Airlines
Apr 24
ORD8:50 amChicago O'Hare Intl
8h 33m
1 stop
SEA3:23 pmSeattle/Tacoma Intl
Apr 30
SEA7:00 amSeattle/Tacoma Intl
4h 02m
ORD1:02 pmChicago O'Hare Intl
Sun Country Air
Apr 25
ORD8:05 pmChicago O'Hare Intl
22h 45m
1 stop
SEA4:50 pmSeattle/Tacoma Intl
Apr 28
SEA11:45 pmSeattle/Tacoma Intl
17h 23m
1 stop
ORD7:08 pmChicago O'Hare Intl

Best airlines flying from Chicago to Seattle

Compare and see reviews for airlines that fly from Chicago to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $94Free CancellationRating
8.1
9,054 reviews
Search Alaska Airlines flights
DeltaPriceFrom $99Free CancellationRating
8.0
11,123 reviews
Search Delta flights
American AirlinesPriceFrom $109Free CancellationRating
7.3
14,952 reviews
Search American Airlines flights
United AirlinesPriceFrom $114Free CancellationRating
7.4
11,352 reviews
Search United Airlines flights
FrontierPriceFrom $123Free CancellationRating
6.3
4,175 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $147Free CancellationRating
6.4
8,785 reviews
Search Spirit Airlines flights
  • Alaska Airlines Flights From Chicago to Seattle

    Alaska Airlines flies from Chicago to Seattle around 20 times per week, with 9,054 momondo users rating the airline 8.1/10. The cheapest Alaska Airlines deal from Chicago to Seattle in the last 72 hours was $94 (round-trip), much lower than the average airfare cost of $330 for Alaska Airlines flights on this route.

  • Delta Flights From Chicago to Seattle

    Another popular option for Chicago to Seattle flights is Delta (8.0/10, 11,123 ratings). Delta flies from Chicago to Seattle around 14 times per week, with deals starting from $99 round-trip and rising to an average price of around $470.


Frontier flights from Chicago to Seattle

Our best Frontier deals on Chicago to Seattle flight tickets
Frontier
Apr 29
MDW5:30 amChicago Midway
10h 15m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
May 6
SEA5:02 pmSeattle/Tacoma Intl
27h 03m
1 stop
MDW10:05 pmChicago Midway
Frontier
Apr 30
MDW10:34 pmChicago Midway
12h 21m
1 stop
SEA8:55 amSeattle/Tacoma Intl
May 7
SEA9:35 pmSeattle/Tacoma Intl
12h 03m
1 stop
MDW11:38 amChicago Midway
Frontier
Apr 30
MDW10:34 pmChicago Midway
12h 21m
1 stop
SEA8:55 amSeattle/Tacoma Intl
May 7
SEA9:35 pmSeattle/Tacoma Intl
12h 03m
1 stop
MDW11:38 amChicago Midway

Sun Country Air flights from Chicago to Seattle

Our best Sun Country Air deals on Chicago to Seattle flight tickets
Sun Country Air
May 28
ORD5:30 pmChicago O'Hare Intl
25h 10m
1 stop
SEA4:40 pmSeattle/Tacoma Intl
Jul 2
SEA6:02 pmSeattle/Tacoma Intl
25h 04m
1 stop
ORD9:06 pmChicago O'Hare Intl
Sun Country Air
May 26
ORD8:00 pmChicago O'Hare Intl
13h 55m
1 stop
SEA7:55 amSeattle/Tacoma Intl
Jun 1
SEA5:45 pmSeattle/Tacoma Intl
23h 18m
1 stop
ORD7:03 pmChicago O'Hare Intl
Sun Country Air
Apr 25
ORD8:05 pmChicago O'Hare Intl
22h 45m
1 stop
SEA4:50 pmSeattle/Tacoma Intl
Apr 28
SEA11:45 pmSeattle/Tacoma Intl
17h 23m
1 stop
ORD7:08 pmChicago O'Hare Intl

  • How far is Chicago to Seattle/Tacoma Intl by plane?

    The straight-line distance from Chicago to Seattle/Tacoma Intl is 1732.3 mi. By plane, this route typically takes 4h 27m.

  • When did momondo last update prices for flights from Chicago to Seattle/Tacoma Intl Airport?

    Prices for flights from Chicago to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Chicago to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Which airlines fly direct from Chicago to Seattle?

You can get a direct flight from Chicago to Seattle. There are direct flights from both O'Hare International Airport (ORD) and Midway International Airport (MDW). Delta, American Airlines, United Airlines, and Alaska Airlines are the main airlines with direct flights from ORD to Seattle. If you are flying from MDW, you will only have flights from Southwest Airlines. There are also single-layover flights from Chicago to Seattle. These flights are available from both ORD and MDW. They have layovers in many cities, the most popular being Las Vegas and Phoenix, while Orlando and Washington are other regular stops. All flights will arrive at Seattle-Tacoma International Airport (SEA).

What is the best way to get in and out of airports in Chicago and Seattle?

The easiest way to get to O'Hare International Airport (ORD) by public transportation is to take the Chicago Transit Authority (CTA) Blue Line train. The Blue Line runs 24 hours a day, seven days a week, and stops at O'Hare's Terminal 2 and Terminal 3. If you're coming from downtown Chicago, you can catch the Blue Line at the Clark/Lake station or any other station along the Blue Line route. You can take the CTA Orange Line train to get to Midway International Airport (MDW). The Orange Line runs between the MDW and the Loop (downtown) of Chicago. You can catch the Orange Line at any station along the route, including the Loop stations. Both airports are also served by bus routes operated by the Chicago Transit Authority (CTA) and the Pace Suburban Bus Service. The Link Light Rail is a fast and convenient option from Seattle-Tacoma International Airport (SEA) to downtown Seattle. The SeaTac/Airport Station is located in the airport terminal, and you can take the Link Light Rail from there to downtown Seattle's Westlake Station. Sound Transit Express and King County Metro buses also run from SEA to downtown Seattle, with several different routes available.

What are the benefits of the different airports in Chicago and Seattle?

O'Hare International Airport (ORD) is one of the busiest airports in the world, offering more direct flights to Seattle, while Midway International Airport (MDW) is a smaller airport with fewer crowds and faster security lines. ORD is generally better for travelers looking for a wider range of flight options and amenities, while MDW may be more convenient for those who live on the south side of Chicago or in the suburbs. Both airports offer various transportation options from downtown Chicago. However, MDW is closer to downtown Chicago, making it a quicker trip. Seattle-Tacoma International Airport (SEA) offers many benefits, including its central location between Seattle and Tacoma, modern facilities, and numerous transportation options. It is also known for its sustainability initiatives, including its LEED-certified terminal and use of renewable energy. SEA has various shops, restaurants, and services to make your travel experience more comfortable and convenient. Moreover, its efficient security and baggage systems help minimize wait times.

Which cities can you get to from Seattle-Tacoma International Airport?

Tacoma is only about 30 minutes away by car, and it's home to the Museum of Glass, which features a large collection of contemporary glass art. Olympia, the capital of Washington State, is about an hour's drive from Seattle-Tacoma International Airport (SEA) and is known for its beautiful capitol building and scenic waterfront parks. Bellingham, located about 1h 30min north of SEA, is a college town home to Western Washington University and known for its vibrant arts scene. Portland, Oregon, is about three hours away and is famous for its food, craft beer, and numerous parks and gardens, including the International Rose Test Garden. The best way to get to these towns is using a rental car from SEA.


Alternative routes for Chicago to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
St. Louis to Seattle Flights
Fastest flight time4h 19m
Cheapest price$172
Chicago to Spokane Flights
Fastest flight time4h 10m
Cheapest price$226
Moline to Seattle Flights
Fastest flight time8h 20m
Cheapest price$516
St. Louis to Spokane Flights
Fastest flight time6h 26m
Cheapest price$298
Bloomington, Illinois to Seattle Flights
Fastest flight time8h 09m
Cheapest price$567
Peoria, Illinois to Seattle Flights
Fastest flight time8h 10m
Cheapest price$318
Chicago to Bellingham Flights
Fastest flight time8h 43m
Cheapest price$331
Moline to Spokane Flights
Fastest flight time6h 32m
Cheapest price$403
Chicago to Pasco Flights
Fastest flight time6h 36m
Cheapest price$294
St. Louis to Pasco Flights
Fastest flight time11h 12m
Cheapest price$492
Bloomington, Illinois to Spokane Flights
Fastest flight time7h 00m
Cheapest price$588
Peoria, Illinois to Spokane Flights
Fastest flight time6h 38m
Cheapest price$833

Similar Chicago to Seattle flights

Flexible with your destination? Broaden your search and find flights similar to your Chicago to Seattle route

Why use momondo?

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

It is quick and easy to find Chicago to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

Yes. momondo enables you to select and highlight flights to Seattle from Chicago with this policy.

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

Once all potential Chicago to Seattle 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 Chicago to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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