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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 1/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 to Chicago

The cheapest plane tickets to Chicago found on KAYAK recently.
6:10 p.m. - 12:11 a.m.SEA-ORD
4h 01mdirect
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 243Delta
Find Deal
Wed, 5 Feb - Wed, 12 Feb
6:10 p.m. - 12:11 a.m.SEA-ORD
4h 01mdirect
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 256Delta
Find Deal
Mon, 13 Jan - Tue, 21 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$ 269Delta
Find Deal
Mon, 13 Jan - Thu, 16 Jan
6:00 p.m. - 11:59 p.m.SEA-ORD
3h 59mdirect
5:56 p.m. - 8:37 p.m.ORD-SEA
4h 41mdirect
C$ 270Alaska Airlines
Find Deal
Wed, 12 Feb - Sat, 15 Feb
11:36 p.m. - 5:40 a.m.SEA-ORD
4h 04mdirect
7:45 a.m. - 10:36 a.m.ORD-SEA
4h 51mdirect
C$ 272Alaska Airlines
Find Deal
Tue, 8 Apr - Tue, 13 May
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
4:05 p.m. - 6:45 p.m.ORD-SEA
4h 40mdirect
C$ 280United Airlines
Find Deal
Thu, 27 Feb - Sat, 1 Mar
9:20 a.m. - 7:59 p.m.SEA-ORD
8h 39m1 stop
10:35 a.m. - 1:22 p.m.ORD-SEA
4h 47mdirect
C$ 351United Airlines
Find Deal
Sun, 19 Jan - Sun, 26 Jan
6:25 p.m. - 6:39 p.m.SEA-ORD
22h 14m1 stop
6:50 p.m. - 4:59 p.m.ORD-SEA
24h 09m1 stop
C$ 489Sun Country Air
Find Deal
Thu, 24 Apr - Sun, 27 Apr
5:05 a.m. - 6:10 p.m.SEA-ORD
11h 05m2 stops
6:15 a.m. - 12:50 p.m.ORD-SEA
8h 35m1 stop
C$ 490Southwest
Find Deal
Fri, 7 Feb - Sun, 9 Feb
10:00 a.m. - 9:30 p.m.SEA-ORD
9h 30m2 stops
1:45 p.m. - 11:55 p.m.ORD-SEA
12h 10m2 stops
C$ 497Southwest
Find Deal
Thu, 30 Jan - Fri, 7 Feb
7:25 a.m. - 1:30 p.m.SEA-ORD
4h 05mdirect
C$ 122Delta
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Sat, 1 Feb
6:15 a.m. - 5:10 p.m.SEA-ORD
8h 55m1 stop
C$ 129United Airlines
Find Deal
Tue, 11 Mar
9:59 p.m. - 1:07 p.m.SEA-ORD
13h 08m1 stop
C$ 144Alaska Airlines
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Tue, 21 Jan
6:03 p.m. - 11:59 p.m.SEA-ORD
3h 56mdirect
C$ 149Alaska Airlines
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Thu, 20 Feb
7:00 a.m. - 6:30 p.m.SEA-ORD
9h 30m2 stops
C$ 243Southwest
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Sat, 22 Feb
5:05 a.m. - 6:10 p.m.SEA-ORD
11h 05m2 stops
C$ 263Southwest
Find Deal
Thu, 16 Jan
9:10 a.m. - 7:11 p.m.SEA-ORD
8h 01m1 stop
C$ 306Sun Country Air
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Fri, 20 Jun
6:34 p.m. - 7:05 p.m.SEA-ORD
22h 31m1 stop
C$ 310Sun Country Air
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Sat, 4 Jan
10:40 p.m. - 11:27 a.m.SEA-ORD
10h 47m1 stop
C$ 318JetBlue
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Fri, 4 Apr
11:48 p.m. - 12:15 p.m.SEA-ORD
10h 27m1 stop
C$ 353JetBlue
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Sun, 23 Mar
5:55 p.m. - 11:59 p.m.SEA-ORD
4h 04mdirect
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 615Delta
Find Deal
Mon, 23 Dec - Sun, 26 Jan
6:10 a.m. - 5:09 p.m.SEA-ORD
8h 59m1 stop
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 629Delta
Find Deal
Mon, 23 Dec - Sun, 26 Jan
8:45 p.m. - 5:30 a.m.SEA-ORD
6h 45m1 stop
7:00 a.m. - 12:58 p.m.ORD-SEA
7h 58m1 stop
C$ 644Alaska Airlines
Find Deal
Thu, 26 Dec - Fri, 19 Sep
12:32 p.m. - 11:21 p.m.SEA-ORD
8h 49m1 stop
3:55 p.m. - 6:41 p.m.ORD-SEA
4h 46mdirect
C$ 701United Airlines
Find Deal
Mon, 23 Dec - Mon, 6 Jan
5:00 a.m. - 4:45 p.m.SEA-ORD
9h 45m1 stop
5:45 a.m. - 2:45 p.m.ORD-SEA
11h 00m2 stops
C$ 728Southwest
Find Deal
Thu, 26 Dec - Tue, 7 Jan
5:00 a.m. - 6:10 p.m.SEA-ORD
11h 10m2 stops
5:45 a.m. - 2:45 p.m.ORD-SEA
11h 00m2 stops
C$ 736Southwest
Find Deal
Thu, 26 Dec - Tue, 7 Jan
9:57 p.m. - 5:30 a.m.SEA-ORD
5h 33m1 stop
3:35 p.m. - 8:35 p.m.ORD-SEA
7h 00m1 stop
C$ 766Alaska Airlines
Find Deal
Thu, 26 Dec - Mon, 6 Jan
6:13 p.m. - 4:59 a.m.SEA-ORD
8h 46m1 stop
1:55 p.m. - 11:50 p.m.ORD-SEA
11h 55m2 stops
C$ 809United Airlines
Find Deal
Mon, 23 Dec - Mon, 6 Jan
6:34 p.m. - 9:03 a.m.SEA-ORD
12h 29m1 stop
6:35 p.m. - 5:15 p.m.ORD-SEA
24h 40m1 stop
C$ 841Sun Country Air
Find Deal
Tue, 24 Dec - Tue, 31 Dec
11:59 p.m. - 10:45 a.m.SEA-ORD
8h 46m1 stop
7:30 p.m. - 10:35 a.m.ORD-SEA
17h 05m1 stop
C$ 887Sun Country Air
Find Deal
Thu, 26 Dec - Mon, 30 Dec
6:10 p.m. - 12:11 a.m.SEA-ORD
4h 01mdirect
2:25 p.m. - 5:10 p.m.ORD-SEA
4h 45mdirect
C$ 243Delta
Find Deal
Wed, 5 Feb - Wed, 12 Feb
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$ 256Delta
Find Deal
Mon, 13 Jan - Sat, 18 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$ 269Delta
Find Deal
Mon, 13 Jan - Thu, 16 Jan
6:00 p.m. - 11:59 p.m.SEA-ORD
3h 59mdirect
5:56 p.m. - 8:37 p.m.ORD-SEA
4h 41mdirect
C$ 270Alaska Airlines
Find Deal
Wed, 12 Feb - Sat, 15 Feb
11:36 p.m. - 5:40 a.m.SEA-ORD
4h 04mdirect
7:45 a.m. - 10:36 a.m.ORD-SEA
4h 51mdirect
C$ 272Alaska Airlines
Find Deal
Tue, 8 Apr - Tue, 13 May
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
4:05 p.m. - 6:45 p.m.ORD-SEA
4h 40mdirect
C$ 280United Airlines
Find Deal
Thu, 27 Feb - Sat, 1 Mar
11:55 p.m. - 5:59 a.m.SEA-ORD
4h 04mdirect
7:16 p.m. - 10:00 p.m.ORD-SEA
4h 44mdirect
C$ 283Alaska Airlines
Find Deal
Mon, 24 Mar - Thu, 27 Mar
11:59 p.m. - 5:53 a.m.SEA-ORD
3h 54mdirect
5:53 p.m. - 8:34 p.m.ORD-SEA
4h 41mdirect
C$ 297Alaska Airlines
Find Deal
Mon, 10 Mar - Wed, 19 Mar
7:00 a.m. - 1:06 p.m.SEA-ORD
4h 06mdirect
4:05 p.m. - 6:45 p.m.ORD-SEA
4h 40mdirect
C$ 372United Airlines
Find Deal
Sat, 8 Feb - Sat, 15 Feb
7:00 a.m. - 1:06 p.m.SEA-ORD
4h 06mdirect
4:05 p.m. - 6:45 p.m.ORD-SEA
4h 40mdirect
C$ 374United Airlines
Find Deal
Wed, 12 Feb - Sat, 15 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
27 Feb
SEA11:59 p.m.Seattle/Tacoma Intl
3h 54m
ORD5:53 a.m.Chicago O'Hare Intl
1 Mar
ORD4:05 p.m.Chicago O'Hare Intl
4h 40m
SEA6:45 p.m.Seattle/Tacoma Intl
United Airlines
19 Jan
SEA9:20 a.m.Seattle/Tacoma Intl
8h 39m
1 stop
ORD7:59 p.m.Chicago O'Hare Intl
26 Jan
ORD10:35 a.m.Chicago O'Hare Intl
4h 47m
SEA1:22 p.m.Seattle/Tacoma Intl
United Airlines
8 Feb
SEA7:00 a.m.Seattle/Tacoma Intl
4h 06m
ORD1:06 p.m.Chicago O'Hare Intl
15 Feb
ORD4:05 p.m.Chicago O'Hare Intl
4h 40m
SEA6:45 p.m.Seattle/Tacoma Intl

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

Our best Alaska Airlines deals on Seattle to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines
12 Feb
SEA6:00 p.m.Seattle/Tacoma Intl
3h 59m
ORD11:59 p.m.Chicago O'Hare Intl
15 Feb
ORD5:56 p.m.Chicago O'Hare Intl
4h 41m
SEA8:37 p.m.Seattle/Tacoma Intl
Alaska Airlines
8 Apr
SEA11:36 p.m.Seattle/Tacoma Intl
4h 04m
ORD5:40 a.m.Chicago O'Hare Intl
13 May
ORD7:45 a.m.Chicago O'Hare Intl
4h 51m
SEA10:36 a.m.Seattle/Tacoma Intl
Alaska Airlines
3 Feb
SEA11:45 a.m.Seattle/Tacoma Intl
4h 14m
ORD5:59 p.m.Chicago O'Hare Intl
6 Feb
ORD6:55 p.m.Chicago O'Hare Intl
16h 20m
1 stop
SEA9:15 a.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$ 299. 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$ 310.

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 Tuesday when prices can be found for as low as C$ 232. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, 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$ 541.

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

In the evening 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$ 284. Flying to Chicago O'Hare Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 357 on average. Flights to Chicago O'Hare Intl Airport from Seattle at noon 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?

The best time to book a flight to Chicago O'Hare Intl Airport from Seattle is 31 days out, which is when prices tend to be around C$ 431. 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$ 398 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.

Can stopping save me money on Seattle to Chicago O'Hare Intl Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Seattle to Chicago O'Hare Intl Airport flight.

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

As of December 2024, prices for Seattle to Chicago O'Hare Intl Airport flights are approximately 22% 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$ 243.
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$ 121Free CancellationRating
8.0
8,594 reviews
Search Delta flights
Alaska AirlinesPriceFrom C$ 182Free CancellationRating
8.0
9,537 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 11 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$ 208. 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 9,549 reviews) operates around 24 flights from Seattle to Chicago O'Hare Intl Airport in any given week. The average Alaska Airlines airfare for this route is around C$ 242, 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.


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.


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