Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Chicago O'Hare Intl Airport from C$ 122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Chicago O'Hare Intl Airport departing on 22/2. 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

Deals available from 900+ travel sites.

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? Early arrival? Instantly customize 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 Seattle to Chicago

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Chicago 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 Seattle to Chicago.

Cheap last-minute flights

Planning a quick getaway from Seattle to Chicago? 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 Chicago, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Chicago

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

All round-trip flight deals from Seattle to Chicago

The cheapest plane tickets from Seattle to Chicago found on KAYAK recently.
5:55 p.m. - 11:56 p.m.SEA-ORD
4h 01mdirect
7:00 a.m. - 9:58 a.m.ORD-SEA
4h 58mdirect
C$ 242Delta
Find Deal
Sat, 15 Feb - Wed, 19 Feb
7:25 a.m. - 1:30 p.m.SEA-ORD
4h 05mdirect
7:00 a.m. - 9:58 a.m.ORD-SEA
4h 58mdirect
C$ 243Delta
Find Deal
Wed, 12 Feb - Wed, 19 Feb
7:00 a.m. - 1:06 p.m.SEA-ORD
4h 06mdirect
8:45 a.m. - 3:54 p.m.ORD-SEA
9h 09m1 stop
C$ 252United Airlines
Find Deal
Wed, 12 Feb - Wed, 19 Feb
4:58 p.m. - 4:53 a.m.SEA-ORD
9h 55m1 stop
7:55 p.m. - 10:39 p.m.ORD-SEA
4h 44mdirect
C$ 265United Airlines
Find Deal
Wed, 5 Mar - Mon, 10 Mar
10:59 p.m. - 1:04 p.m.SEA-ORD
12h 05m1 stop
5:54 p.m. - 8:35 p.m.ORD-SEA
4h 41mdirect
C$ 271Alaska Airlines
Find Deal
Thu, 20 Feb - Tue, 25 Feb
6:03 p.m. - 11:59 p.m.SEA-ORD
3h 56mdirect
7:45 a.m. - 10:28 a.m.ORD-SEA
4h 43mdirect
C$ 272Alaska Airlines
Find Deal
Sat, 8 Mar - Thu, 13 Mar
7:57 p.m. - 5:46 a.m.SEA-ORD
7h 49m1 stop
7:16 p.m. - 10:00 p.m.ORD-SEA
4h 44mdirect
C$ 289
Find Deal
Wed, 19 Mar - Tue, 25 Mar
7:57 p.m. - 5:46 a.m.SEA-ORD
7h 49m1 stop
7:16 p.m. - 10:00 p.m.ORD-SEA
4h 44mdirect
C$ 297
Find Deal
Thu, 20 Mar - Tue, 25 Mar
9:10 a.m. - 10:35 p.m.SEA-ORD
11h 25m2 stops
7:05 p.m. - 11:45 p.m.ORD-SEA
6h 40m1 stop
C$ 328Southwest
Find Deal
Tue, 11 Feb - Sat, 15 Feb
5:15 a.m. - 4:25 p.m.SEA-ORD
9h 10m1 stop
2:45 p.m. - 12:05 a.m.ORD-SEA
11h 20m2 stops
C$ 366Southwest
Find Deal
Wed, 2 Apr - Sat, 5 Apr
5:55 p.m. - 11:56 p.m.SEA-ORD
4h 01mdirect
C$ 122Delta
Find Deal
Sat, 22 Feb
11:38 a.m. - 5:05 a.m.SEA-ORD
15h 27m1 stop
C$ 124Frontier
Find Deal
Sun, 2 Mar
12:41 p.m. - 6:36 a.m.SEA-ORD
15h 55m1 stop
C$ 125Spirit Airlines
Find Deal
Wed, 5 Mar
12:41 p.m. - 6:36 a.m.SEA-ORD
15h 55m1 stop
C$ 127Spirit Airlines
Find Deal
Wed, 5 Mar
4:58 p.m. - 4:53 a.m.SEA-ORD
9h 55m1 stop
C$ 130United Airlines
Find Deal
Tue, 4 Mar
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
C$ 135United Airlines
Find Deal
Fri, 28 Feb
1:33 p.m. - 7:43 p.m.SEA-ORD
4h 10mdirect
C$ 150American Airlines
Find Deal
Wed, 5 Mar
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
C$ 151Alaska Airlines
Find Deal
Mon, 17 Feb
11:55 p.m. - 5:59 a.m.SEA-ORD
4h 04mdirect
C$ 194Alaska Airlines
Find Deal
Fri, 21 Mar
12:43 a.m. - 11:03 a.m.SEA-ORD
8h 20m1 stop
C$ 258American Airlines
Find Deal
Tue, 4 Mar
7:25 a.m. - 1:30 p.m.SEA-ORD
4h 05mdirect
7:00 a.m. - 9:55 a.m.ORD-SEA
4h 55mdirect
C$ 625Delta
Find Deal
Sat, 25 Jan - Sat, 8 Feb
7:25 a.m. - 1:30 p.m.SEA-ORD
4h 05mdirect
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 775Delta
Find Deal
Fri, 24 Jan - Mon, 27 Jan
12:00 p.m. - 11:59 p.m.SEA-ORD
9h 59m1 stop
7:15 a.m. - 10:11 a.m.ORD-SEA
4h 56mdirect
C$ 789Delta
Find Deal
Wed, 22 Jan - Thu, 30 Jan
5:15 p.m. - 5:30 a.m.SEA-ORD
10h 15m1 stop
8:52 a.m. - 9:11 p.m.ORD-SEA
14h 19m2 stops
C$ 844United Airlines
Find Deal
Fri, 24 Jan - Sat, 25 Jan
6:10 p.m. - 12:11 a.m.SEA-ORD
4h 01mdirect
7:15 a.m. - 10:11 a.m.ORD-SEA
4h 56mdirect
C$ 920Delta
Find Deal
Thu, 23 Jan - Fri, 24 Jan
6:15 a.m. - 3:45 p.m.SEA-ORD
7h 30m1 stop
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 934Delta
Find Deal
Thu, 23 Jan - Sun, 26 Jan
6:10 a.m. - 9:29 p.m.SEA-ORD
13h 19m2 stops
7:15 a.m. - 2:00 p.m.ORD-SEA
8h 45m1 stop
C$ 940United Airlines
Find Deal
Fri, 24 Jan - Mon, 27 Jan
6:10 a.m. - 9:29 p.m.SEA-ORD
13h 19m2 stops
12:55 p.m. - 9:20 p.m.ORD-SEA
10h 25m2 stops
C$ 947United Airlines
Find Deal
Fri, 24 Jan - Tue, 28 Jan
7:00 a.m. - 11:15 p.m.SEA-ORD
14h 15m2 stops
3:35 p.m. - 10:30 p.m.ORD-SEA
8h 55m1 stop
C$ 969United Airlines
Find Deal
Wed, 22 Jan - Thu, 30 Jan
6:10 a.m. - 9:29 p.m.SEA-ORD
13h 19m2 stops
4:08 p.m. - 11:09 p.m.ORD-SEA
9h 01m1 stop
C$ 1,086United Airlines
Find Deal
Thu, 23 Jan - Fri, 24 Jan
5:55 p.m. - 11:56 p.m.SEA-ORD
4h 01mdirect
7:00 a.m. - 9:58 a.m.ORD-SEA
4h 58mdirect
C$ 242Delta
Find Deal
Sat, 15 Feb - Wed, 19 Feb
7:25 a.m. - 1:30 p.m.SEA-ORD
4h 05mdirect
7:00 a.m. - 9:58 a.m.ORD-SEA
4h 58mdirect
C$ 243Delta
Find Deal
Wed, 12 Feb - Wed, 19 Feb
5:55 p.m. - 11:56 p.m.SEA-ORD
4h 01mdirect
2:10 p.m. - 4:56 p.m.ORD-SEA
4h 46mdirect
C$ 255Delta
Find Deal
Tue, 18 Feb - Thu, 20 Feb
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
7:55 p.m. - 10:39 p.m.ORD-SEA
4h 44mdirect
C$ 269United Airlines
Find Deal
Mon, 3 Mar - Mon, 10 Mar
6:03 p.m. - 11:59 p.m.SEA-ORD
3h 56mdirect
5:54 p.m. - 8:35 p.m.ORD-SEA
4h 41mdirect
C$ 272Alaska Airlines
Find Deal
Sat, 8 Mar - Wed, 12 Mar
11:50 p.m. - 5:47 a.m.SEA-ORD
3h 57mdirect
7:10 a.m. - 9:50 a.m.ORD-SEA
4h 40mdirect
C$ 282United Airlines
Find Deal
Wed, 4 Jun - Sat, 14 Jun
6:03 p.m. - 11:59 p.m.SEA-ORD
3h 56mdirect
7:45 a.m. - 10:28 a.m.ORD-SEA
4h 43mdirect
C$ 285Alaska Airlines
Find Deal
Mon, 10 Mar - Thu, 13 Mar
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
2:00 p.m. - 4:40 p.m.ORD-SEA
4h 40mdirect
C$ 301Alaska Airlines
Find Deal
Mon, 17 Feb - Wed, 19 Feb
11:36 p.m. - 5:40 a.m.SEA-ORD
4h 04mdirect
7:00 a.m. - 9:36 a.m.ORD-SEA
4h 36mdirect
C$ 315Alaska Airlines
Find Deal
Tue, 25 Mar - Thu, 3 Apr
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
7:59 p.m. - 10:42 p.m.ORD-SEA
4h 43mdirect
C$ 335United Airlines
Find Deal
Mon, 17 Feb - Mon, 24 Feb

United Airlines flights from Seattle to Chicago O'Hare Intl Airport

Our best United Airlines deals on Seattle to Chicago O'Hare Intl Airport flight tickets
United Airlines
12 Feb
SEA7:00 a.m.Seattle/Tacoma Intl
4h 06m
ORD1:06 p.m.Chicago O'Hare Intl
19 Feb
ORD8:45 a.m.Chicago O'Hare Intl
9h 09m
1 stop
SEA3:54 p.m.Seattle/Tacoma Intl
United Airlines
5 Mar
SEA4:58 p.m.Seattle/Tacoma Intl
9h 55m
1 stop
ORD4:53 a.m.Chicago O'Hare Intl
10 Mar
ORD7:55 p.m.Chicago O'Hare Intl
4h 44m
SEA10:39 p.m.Seattle/Tacoma Intl
United Airlines
6 Mar
SEA11:59 p.m.Seattle/Tacoma Intl
3h 54m
ORD5:53 a.m.Chicago O'Hare Intl
10 Mar
ORD7:55 p.m.Chicago O'Hare Intl
4h 44m
SEA10:39 p.m.Seattle/Tacoma Intl

Delta flights from Seattle to Chicago O'Hare Intl Airport

Our best Delta deals on Seattle to Chicago O'Hare Intl Airport flight tickets
Delta
15 Feb
SEA5:55 p.m.Seattle/Tacoma Intl
4h 01m
ORD11:56 p.m.Chicago O'Hare Intl
19 Feb
ORD7:00 a.m.Chicago O'Hare Intl
4h 58m
SEA9:58 a.m.Seattle/Tacoma Intl
Delta
12 Feb
SEA7:25 a.m.Seattle/Tacoma Intl
4h 05m
ORD1:30 p.m.Chicago O'Hare Intl
19 Feb
ORD7:00 a.m.Chicago O'Hare Intl
4h 58m
SEA9:58 a.m.Seattle/Tacoma Intl
Delta
18 Feb
SEA5:55 p.m.Seattle/Tacoma Intl
4h 01m
ORD11:56 p.m.Chicago O'Hare Intl
20 Feb
ORD2:10 p.m.Chicago O'Hare Intl
4h 46m
SEA4:56 p.m.Seattle/Tacoma Intl

See travel insights to Chicago from

How to get the cheapest flight ticket from Seattle 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

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

In general, February is the cheapest month to fly from Seattle to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 327. The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Seattle averaging around C$ 341.

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 Friday when prices can be found for as low as C$ 841. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Chicago O'Hare Intl Airport for around C$ 1,279.

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

In the afternoon is the cheapest time of day to fly from Seattle to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 301. Flying to Chicago O'Hare Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,272 on average. Flights to Chicago O'Hare Intl Airport from Seattle in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Fly from Seattle/Tacoma Intl to Chicago O'Hare Intl for the best Seattle/Tacoma Intl - 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 Seattle when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around C$ 436 when searching 6 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 Seattle for as low as C$ 374 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl 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.

How have Seattle to Chicago O'Hare Intl Airport flight prices changed over time?

As of January 2025, prices for Seattle to Chicago O'Hare Intl Airport flights are approximately 21% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Chicago O'Hare Intl Airport (SEA to ORD) flight deals and tips

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

Best price found

C$ 122

Fastest flight time

3h 54m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Seattle in the past 72 hours is C$ 122. The best round-trip flight deal from Seattle to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 242.
The fastest flight from Seattle to Chicago O'Hare Intl Airport takes 3h 54m
Direct flights go from Seattle to Chicago O'Hare Intl Airport every day.

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

    The straight-line distance from Seattle/Tacoma Intl to Chicago O'Hare Intl is 2762.2 km. A reasonable flight in good conditions will take 3h 54m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Chicago O'Hare Intl Airport.

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

    The travel and health documents you'll need for your trip to Chicago O'Hare 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 Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Seattle to Chicago O'Hare Intl Airport?


Best airlines flying from Seattle to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Seattle to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom C$ 122Free CancellationRating
8.0
8,521 reviews
Search Delta flights
Alaska AirlinesPriceFrom C$ 182Free CancellationRating
8.0
9,706 reviews
Search Alaska Airlines flights
  • Delta Flights From Seattle to Chicago O'Hare Intl Airport

    Delta is one of the most popular airlines flying from Seattle to Chicago O'Hare Intl Airport, operating 10 flights/week on average for this route. A good Delta flight deal for Seattle to Chicago O'Hare Intl Airport starts from C$ 84 round-trip, up to an average price of C$ 207. Our users have rated Delta at 8.0/10.

  • Alaska Airlines Flights From Seattle to Chicago O'Hare Intl Airport

    Alaska Airlines (8.0/10 from 9,706 reviews) operates around 14 flights from Seattle to Chicago O'Hare Intl Airport in any given week. The average Alaska Airlines airfare for this route is around C$ 246, with deals from around C$ 127 rare but found on momondo. Referenced prices are for round-trip Seattle to Chicago O'Hare Intl Airport flight searches in the last 72 hours.


Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lisle
Naperville
Elk Grove Village
Wheeling
Skokie
Rosemont
Glenview
Great Lakes
Des Plaines
Benton Harbor
Elmhurst
Merrillville
Harvard
Oak Brook
Schaumburg
Bridgeview
Rockford

Why use momondo?

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

It is quick and easy to find Seattle to Chicago 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 Chicago that suits you.

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

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

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

momondo helps you find the best flight between Seattle and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Seattle to Chicago 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 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.
1 adult
From?
To?
Sun 26/1
Sun 2/2
Email me momondo's favourite deals

Find better results for your trip to Chicago