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Cheap flights from Chicago to Seattle from £66

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 11/12. 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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Find the cheapest flights from Chicago to Seattle

Cheap return flights

These are some of the best return flight deals from Chicago to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago to Seattle.

Cheap last-minute flights

Planning a quick getaway from Chicago to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Chicago to Seattle

Find recent round-trip train or bus tickets from Chicago to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
06:05 - 08:55ORD-SEA
4h 50mdirect
06:15 - 12:17SEA-ORD
4h 02mdirect
£130Delta
Find Deal
Sat, 7 Dec - Sat, 14 Dec
06:05 - 08:55ORD-SEA
4h 50mdirect
11:35 - 17:46SEA-ORD
4h 11mdirect
£132Delta
Find Deal
Sat, 7 Dec - Sat, 14 Dec
06:05 - 08:55ORD-SEA
4h 50mdirect
07:15 - 13:20SEA-ORD
4h 05mdirect
£134Delta
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Thu, 28 Nov - Wed, 4 Dec
07:15 - 13:15ORD-SEA
8h 00m1 stop
12:59 - 22:37SEA-ORD
7h 38m1 stop
£138United Airlines
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Sat, 26 Apr - Sat, 3 May
19:55 - 22:46ORD-SEA
4h 51mdirect
23:55 - 05:52SEA-ORD
3h 57mdirect
£144United Airlines
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Fri, 6 Dec - Sun, 8 Dec
15:35 - 22:00ORD-SEA
8h 25m1 stop
18:00 - 23:59SEA-ORD
3h 59mdirect
£151Alaska Airlines
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Fri, 10 Jan - Mon, 13 Jan
06:20 - 08:58ORD-SEA
4h 38mdirect
06:00 - 12:16SEA-ORD
4h 16mdirect
£157Alaska Airlines
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Mon, 18 Nov - Mon, 25 Nov
06:35 - 00:10ORD-SEA
19h 35m1 stop
16:00 - 05:30SEA-ORD
11h 30m1 stop
£212Spirit Airlines
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Sat, 7 Dec - Sat, 14 Dec
11:33 - 17:02ORD-SEA
7h 29m1 stop
23:59 - 19:05SEA-ORD
17h 06m1 stop
£220Sun Country Air
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Tue, 17 Dec - Fri, 27 Dec
09:47 - 22:43ORD-SEA
14h 56m1 stop
23:59 - 17:38SEA-ORD
15h 39m1 stop
£243Sun Country Air
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Mon, 23 Dec - Mon, 30 Dec
14:10 - 16:58ORD-SEA
4h 48mdirect
£66Delta
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Wed, 11 Dec
06:00 - 08:44ORD-SEA
4h 44mdirect
£69Alaska Airlines
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Thu, 28 Nov
19:55 - 22:38ORD-SEA
4h 43mdirect
£73United Airlines
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Sat, 15 Mar
07:00 - 13:19ORD-SEA
8h 19m1 stop
£77United Airlines
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Tue, 11 Mar
11:33 - 17:02ORD-SEA
7h 29m1 stop
£106Sun Country Air
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Tue, 17 Dec
14:55 - 23:45ORD-SEA
10h 50m1 stop
£121Southwest
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Mon, 18 Nov
16:35 - 00:30ORD-SEA
9h 55m2 stops
£125Southwest
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Mon, 18 Nov
20:05 - 22:43ORD-SEA
28h 38m1 stop
£145Sun Country Air
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Sat, 21 Dec
05:00 - 12:59ORD-SEA
9h 59m1 stop
£359American Airlines
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Mon, 11 Nov
14:50 - 23:00ORD-SEA
10h 10m2 stops
£618American Airlines
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Mon, 11 Nov
13:58 - 19:58ORD-SEA
8h 00m1 stop
22:30 - 04:30SEA-ORD
4h 00mdirect
£315Alaska Airlines
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Sat, 9 Nov - Mon, 25 Nov
13:58 - 18:52ORD-SEA
6h 54m1 stop
18:00 - 23:59SEA-ORD
3h 59mdirect
£318Alaska Airlines
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Sat, 9 Nov - Fri, 31 Jan
13:00 - 21:07ORD-SEA
10h 07m2 stops
09:20 - 23:59SEA-ORD
12h 39m2 stops
£383United Airlines
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Sat, 9 Nov - Fri, 31 Jan
19:19 - 22:00ORD-SEA
4h 41mdirect
06:00 - 12:09SEA-ORD
4h 09mdirect
£399Alaska Airlines
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Fri, 8 Nov - Mon, 11 Nov
13:58 - 18:52ORD-SEA
6h 54m1 stop
06:00 - 12:09SEA-ORD
4h 09mdirect
£406Alaska Airlines
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Fri, 8 Nov - Mon, 11 Nov
17:00 - 22:25ORD-SEA
7h 25m1 stop
07:15 - 13:20SEA-ORD
4h 05mdirect
£407Delta
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Fri, 8 Nov - Thu, 14 Nov
12:40 - 17:00ORD-SEA
6h 20m1 stop
13:35 - 21:58SEA-ORD
6h 23m1 stop
£414Delta
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Sat, 9 Nov - Thu, 14 Nov
16:05 - 18:54ORD-SEA
4h 49mdirect
23:55 - 05:52SEA-ORD
3h 57mdirect
£434United Airlines
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Sat, 9 Nov - Wed, 13 Nov
12:15 - 19:45ORD-SEA
9h 30m2 stops
05:00 - 18:10SEA-ORD
11h 10m2 stops
£460Southwest
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Fri, 8 Nov - Mon, 11 Nov
13:45 - 22:55ORD-SEA
11h 10m2 stops
10:20 - 22:35SEA-ORD
10h 15m2 stops
£468Southwest
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Tue, 5 Nov - Fri, 15 Nov
06:05 - 08:55ORD-SEA
4h 50mdirect
06:15 - 12:17SEA-ORD
4h 02mdirect
£130Delta
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Sat, 7 Dec - Sat, 14 Dec
06:05 - 08:55ORD-SEA
4h 50mdirect
11:35 - 17:46SEA-ORD
4h 11mdirect
£132Delta
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Sat, 7 Dec - Sat, 14 Dec
06:05 - 08:55ORD-SEA
4h 50mdirect
07:15 - 13:20SEA-ORD
4h 05mdirect
£134Delta
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Thu, 28 Nov - Wed, 4 Dec
14:10 - 16:58ORD-SEA
4h 48mdirect
17:59 - 23:59SEA-ORD
4h 00mdirect
£137Delta
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Wed, 11 Dec - Fri, 13 Dec
06:05 - 08:55ORD-SEA
4h 50mdirect
11:45 - 17:47SEA-ORD
4h 02mdirect
£141Delta
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Mon, 25 Nov - Thu, 5 Dec
19:55 - 22:46ORD-SEA
4h 51mdirect
23:55 - 05:52SEA-ORD
3h 57mdirect
£144United Airlines
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Fri, 6 Dec - Sun, 8 Dec
20:04 - 22:53ORD-SEA
4h 49mdirect
23:59 - 06:00SEA-ORD
4h 01mdirect
£150United Airlines
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Thu, 16 Jan - Mon, 20 Jan
14:00 - 16:42ORD-SEA
4h 42mdirect
18:03 - 23:59SEA-ORD
3h 56mdirect
£153Alaska Airlines
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Thu, 20 Feb - Wed, 26 Feb
06:20 - 08:58ORD-SEA
4h 38mdirect
06:00 - 12:16SEA-ORD
4h 16mdirect
£157Alaska Airlines
Find Deal
Mon, 18 Nov - Mon, 25 Nov
09:55 - 12:40ORD-SEA
4h 45mdirect
00:15 - 06:16SEA-ORD
4h 01mdirect
£304American Airlines
Find Deal
Sun, 17 Nov - Wed, 20 Nov

Delta flights from Chicago to Seattle

Our best Delta deals on Chicago to Seattle flight tickets
Delta
7 Dec
ORD06:05Chicago O'Hare Intl
4h 50m
SEA08:55Seattle/Tacoma Intl
14 Dec
SEA06:15Seattle/Tacoma Intl
4h 02m
ORD12:17Chicago O'Hare Intl
Delta
7 Dec
ORD06:05Chicago O'Hare Intl
4h 50m
SEA08:55Seattle/Tacoma Intl
14 Dec
SEA11:35Seattle/Tacoma Intl
4h 11m
ORD17:46Chicago O'Hare Intl
Delta
28 Nov
ORD06:05Chicago O'Hare Intl
4h 50m
SEA08:55Seattle/Tacoma Intl
4 Dec
SEA07:15Seattle/Tacoma Intl
4h 05m
ORD13:20Chicago O'Hare Intl

Alaska Airlines flights from Chicago to Seattle

Our best Alaska Airlines deals on Chicago to Seattle flight tickets
Alaska Airlines
10 Jan
ORD15:35Chicago O'Hare Intl
8h 25m
1 stop
SEA22:00Seattle/Tacoma Intl
13 Jan
SEA18:00Seattle/Tacoma Intl
3h 59m
ORD23:59Chicago O'Hare Intl
Alaska Airlines
18 Nov
ORD06:20Chicago O'Hare Intl
4h 38m
SEA08:58Seattle/Tacoma Intl
25 Nov
SEA06:00Seattle/Tacoma Intl
4h 16m
ORD12:16Chicago O'Hare Intl
Alaska Airlines
13 Jan
ORD15:35Chicago O'Hare Intl
8h 25m
1 stop
SEA22:00Seattle/Tacoma Intl
17 Jan
SEA18:00Seattle/Tacoma Intl
3h 59m
ORD23:59Chicago O'Hare Intl

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. The most expensive is July.

What is the cheapest day to depart Chicago for Seattle?

Monday. The cheapest day of the week is usually Monday. The most expensive is usually Monday.

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

In the afternoon. Chicago to Seattle flights are approximately 2% more expensive in the morning than in the afternoon

What is the cheapest Chicago to Seattle flight route?

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

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

29 days before. The cheapest time to buy a flight from Chicago to Seattle is approximately 29 days to departure

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

As of November 2024, there are 23 flights per week flying from Chicago to Seattle. The most common time of day flights depart is 19:00, with 37% of flights taking off in the evening.

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

As of November 2024, there are 165 flights per week flying from Chicago to Seattle. The most common day of the week flights depart is Monday, with 27% of flights taking off on this day.

Can stopping save me money on Chicago to Seattle flights?

No. A direct flight is the cheapest option for a flight between Chicago to Seattle.

How have Chicago to Seattle flight prices changed over time?

As of November 2024, prices for Chicago to Seattle flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

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

£66

Fastest flight time

4h 30m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Chicago in the past 72 hours is £66. The best return flight deal from Chicago to Seattle found on momondo in the last 72 hours is £130.
The fastest flight from Chicago to Seattle takes 4h 30m
Direct flights go from Chicago to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • 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 37m.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago to Seattle?


Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Seattle for you.

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

Yes. All flights to Seattle from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Chicago to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Chicago to Seattle 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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