Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Chicago to Seattle from £67

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 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
'This year, momondo is the #1 place for airfares on the internet.'
Voted winner of Europe's Best Travel App 2023
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
07:50 - 14:25ORD-SEA
8h 35m1 stop
12:10 - 19:28SEA-ORD
29h 18m1 stop
£116Frontier
Find Deal
Mon, 27 Jan - Thu, 30 Jan
18:36 - 08:57ORD-SEA
16h 21m1 stop
09:47 - 19:25SEA-ORD
7h 38m1 stop
£124Frontier
Find Deal
Thu, 9 Jan - Mon, 13 Jan
07:15 - 10:11ORD-SEA
4h 56mdirect
07:25 - 13:30SEA-ORD
4h 05mdirect
£133Delta
Find Deal
Sat, 18 Jan - Sat, 25 Jan
07:15 - 10:11ORD-SEA
4h 56mdirect
18:10 - 00:11SEA-ORD
4h 01mdirect
£135Delta
Find Deal
Sun, 12 Jan - Wed, 15 Jan
14:07 - 16:55ORD-SEA
4h 48mdirect
12:10 - 19:28SEA-ORD
29h 18m1 stop
Mon, 27 Jan - Thu, 30 Jan
20:04 - 22:53ORD-SEA
4h 49mdirect
07:00 - 13:06SEA-ORD
4h 06mdirect
£141United Airlines
Find Deal
Thu, 23 Jan - Thu, 30 Jan
17:28 - 20:11ORD-SEA
4h 43mdirect
09:47 - 19:25SEA-ORD
7h 38m1 stop
Thu, 9 Jan - Mon, 13 Jan
15:35 - 22:00ORD-SEA
8h 25m1 stop
18:00 - 23:59SEA-ORD
3h 59mdirect
£144Alaska Airlines
Find Deal
Fri, 31 Jan - Tue, 4 Feb
18:55 - 21:46ORD-SEA
4h 51mdirect
22:51 - 13:07SEA-ORD
12h 16m1 stop
£148Alaska Airlines
Find Deal
Sat, 25 Jan - Tue, 28 Jan
07:15 - 14:00ORD-SEA
8h 45m1 stop
23:59 - 06:00SEA-ORD
4h 01mdirect
£158United Airlines
Find Deal
Thu, 16 Jan - Thu, 23 Jan
07:15 - 10:11ORD-SEA
4h 56mdirect
£67Delta
Find Deal
Sat, 18 Jan
20:04 - 22:53ORD-SEA
4h 49mdirect
£71United Airlines
Find Deal
Fri, 7 Feb
15:35 - 22:00ORD-SEA
8h 25m1 stop
£78Alaska Airlines
Find Deal
Thu, 9 Jan
19:16 - 22:00ORD-SEA
4h 44mdirect
£82Alaska Airlines
Find Deal
Fri, 28 Mar
13:45 - 22:40ORD-SEA
10h 55m2 stops
£113Southwest
Find Deal
Mon, 13 Jan
05:45 - 15:30ORD-SEA
11h 45m2 stops
£121Southwest
Find Deal
Tue, 18 Feb
19:30 - 10:35ORD-SEA
17h 05m1 stop
£251Sun Country Air
Find Deal
Mon, 30 Dec
06:00 - 13:10ORD-SEA
9h 10m1 stop
£259Frontier
Find Deal
Wed, 25 Dec
06:00 - 13:10ORD-SEA
9h 10m1 stop
£260Frontier
Find Deal
Wed, 25 Dec
20:03 - 22:43ORD-SEA
28h 40m1 stop
£269Sun Country Air
Find Deal
Sun, 29 Dec
14:10 - 17:00ORD-SEA
4h 50mdirect
17:55 - 23:59SEA-ORD
4h 04mdirect
£294Delta
Find Deal
Tue, 24 Dec - Tue, 31 Dec
17:50 - 23:35ORD-SEA
7h 45m1 stop
07:10 - 13:15SEA-ORD
4h 05mdirect
£302Delta
Find Deal
Tue, 24 Dec - Wed, 1 Jan
06:00 - 08:44ORD-SEA
4h 44mdirect
06:00 - 12:10SEA-ORD
4h 10mdirect
£330Alaska Airlines
Find Deal
Tue, 24 Dec - Wed, 1 Jan
06:00 - 08:44ORD-SEA
4h 44mdirect
18:00 - 23:59SEA-ORD
3h 59mdirect
£337Alaska Airlines
Find Deal
Tue, 24 Dec - Wed, 8 Jan
12:15 - 23:00ORD-SEA
12h 45m2 stops
10:10 - 22:35SEA-ORD
10h 25m2 stops
£352Southwest
Find Deal
Tue, 24 Dec - Wed, 8 Jan
10:00 - 17:29ORD-SEA
9h 29m1 stop
23:59 - 17:38SEA-ORD
15h 39m1 stop
£355Sun Country Air
Find Deal
Tue, 24 Dec - Mon, 30 Dec
09:47 - 10:48ORD-SEA
27h 01m1 stop
18:34 - 19:05SEA-ORD
22h 31m1 stop
£418Sun Country Air
Find Deal
Mon, 23 Dec - Sat, 4 Jan
12:15 - 23:00ORD-SEA
12h 45m2 stops
13:10 - 22:35SEA-ORD
7h 25m1 stop
£419Southwest
Find Deal
Tue, 24 Dec - Tue, 31 Dec
06:15 - 12:41ORD-SEA
8h 26m1 stop
23:51 - 05:51SEA-ORD
4h 00mdirect
£444United Airlines
Find Deal
Sun, 22 Dec - Wed, 25 Dec
15:35 - 22:30ORD-SEA
8h 55m1 stop
23:51 - 05:51SEA-ORD
4h 00mdirect
£460United Airlines
Find Deal
Fri, 20 Dec - Wed, 25 Dec
07:15 - 10:11ORD-SEA
4h 56mdirect
07:25 - 13:30SEA-ORD
4h 05mdirect
£133Delta
Find Deal
Sat, 18 Jan - Sat, 25 Jan
07:15 - 10:11ORD-SEA
4h 56mdirect
18:10 - 00:11SEA-ORD
4h 01mdirect
£135Delta
Find Deal
Sun, 12 Jan - Wed, 15 Jan
14:25 - 17:10ORD-SEA
4h 45mdirect
18:10 - 00:11SEA-ORD
4h 01mdirect
£136Delta
Find Deal
Fri, 24 Jan - Sun, 26 Jan
14:25 - 17:10ORD-SEA
4h 45mdirect
07:25 - 13:30SEA-ORD
4h 05mdirect
£137Delta
Find Deal
Thu, 9 Jan - Tue, 14 Jan
08:00 - 10:39ORD-SEA
4h 39mdirect
18:02 - 23:59SEA-ORD
3h 57mdirect
£149Alaska Airlines
Find Deal
Sat, 5 Apr - Wed, 16 Apr
14:07 - 16:55ORD-SEA
4h 48mdirect
18:00 - 23:59SEA-ORD
3h 59mdirect
£163Alaska Airlines
Find Deal
Fri, 10 Jan - Sun, 12 Jan
18:50 - 21:41ORD-SEA
4h 51mdirect
23:00 - 05:04SEA-ORD
4h 04mdirect
£165Alaska Airlines
Find Deal
Sat, 10 May - Tue, 20 May
20:04 - 22:53ORD-SEA
4h 49mdirect
07:00 - 13:06SEA-ORD
4h 06mdirect
£166United Airlines
Find Deal
Wed, 15 Jan - Sat, 18 Jan
13:30 - 16:16ORD-SEA
4h 46mdirect
23:59 - 06:00SEA-ORD
4h 01mdirect
£177United Airlines
Find Deal
Thu, 16 Jan - Thu, 23 Jan
20:21 - 23:10ORD-SEA
4h 49mdirect
07:00 - 13:06SEA-ORD
4h 06mdirect
£219United Airlines
Find Deal
Sat, 18 Jan - Sat, 25 Jan

Alaska Airlines flights from Chicago to Seattle

Our best Alaska Airlines deals on Chicago to Seattle flight tickets
Alaska Airlines
31 Jan
ORD15:35Chicago O'Hare Intl
8h 25m
1 stop
SEA22:00Seattle/Tacoma Intl
4 Feb
SEA18:00Seattle/Tacoma Intl
3h 59m
ORD23:59Chicago O'Hare Intl
Alaska Airlines
25 Jan
ORD18:55Chicago O'Hare Intl
4h 51m
SEA21:46Seattle/Tacoma Intl
28 Jan
SEA22:51Seattle/Tacoma Intl
12h 16m
1 stop
ORD13:07Chicago O'Hare Intl
Alaska Airlines
10 Jan
ORD15:35Chicago O'Hare Intl
8h 25m
1 stop
SEA22:00Seattle/Tacoma Intl
15 Jan
SEA21:59Seattle/Tacoma Intl
13h 08m
1 stop
ORD13:07Chicago O'Hare Intl

Delta flights from Chicago to Seattle

Our best Delta deals on Chicago to Seattle flight tickets
Delta
18 Jan
ORD07:15Chicago O'Hare Intl
4h 56m
SEA10:11Seattle/Tacoma Intl
25 Jan
SEA07:25Seattle/Tacoma Intl
4h 05m
ORD13:30Chicago O'Hare Intl
Delta
12 Jan
ORD07:15Chicago O'Hare Intl
4h 56m
SEA10:11Seattle/Tacoma Intl
15 Jan
SEA18:10Seattle/Tacoma Intl
4h 01m
ORD00:11Chicago O'Hare Intl
Delta
24 Jan
ORD14:25Chicago O'Hare Intl
4h 45m
SEA17:10Seattle/Tacoma Intl
26 Jan
SEA18:10Seattle/Tacoma Intl
4h 01m
ORD00:11Chicago O'Hare Intl

See travel insights to Seattle from

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 typical price of a round-trip flight between Chicago and Seattle?

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Chicago is in February. Flight prices, which tend to average around £155, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from Chicago averaging around £157.

What is the cheapest day to depart on your flight to Seattle?

According to our data, Tuesday is the cheapest day to fly to Seattle from Chicago. The lowest ticket price found for a Tuesday departure recently was £0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Monday is £252.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from Chicago to Seattle at midday for as low as £0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £233.

What is the cheapest Chicago to Seattle/Tacoma Intl flight route?

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

How far in advance should I book a flight to Seattle?

In general, most travellers find the cheapest time to book a flight to Seattle is about 38 days prior to their departure date, when tickets on average are £218. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Chicago for as low as £118 on momondo.

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

There are 4 cabin classes available to choose from on Chicago to Seattle/Tacoma Intl 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 5% on your flight if you consider stops on a Chicago to Seattle flight.

How have Chicago to Seattle flight prices changed over time?

As of December 2024, prices for Chicago to Seattle flights are approximately 33% 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

£67

Fastest flight time

4h 35m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Chicago in the past 72 hours is £67. The best return flight deal from Chicago to Seattle found on momondo in the last 72 hours is £116.
The fastest flight from Chicago to Seattle takes 4h 35m
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 35m.

  • 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.


An easier way to manage your Seattle trip

We make it super easy to schedule, organise 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.
1 adult
From?
To?
Tue 24/12
Tue 31/12
Email me momondo's favourite deals

Find better results for your trip to the United States