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Cheap flights from Chicago Midway Airport to Seattle from $91

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 Midway Airport to Seattle departing on 12/15. 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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0 bags

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Find the cheapest flights from Chicago Midway Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
8:05 am - 10:50 amMDW-SEA
4h 45mnonstop
Southwest Logo
6:45 am - 12:40 pmSEA-MDW
3h 55mnonstop
$177Southwest
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Thu, Feb 5 - Sun, Feb 8
Frontier Logo
12:18 pm - 11:53 amMDW-SEA
25h 35m1 stop
Frontier Logo
6:07 pm - 1:09 pmSEA-MDW
17h 02m2 stops
$179Frontier
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Fri, Dec 12 - Sun, Jan 11
Frontier Logo
12:18 pm - 11:53 amMDW-SEA
25h 35m1 stop
Frontier Logo
12:48 pm - 11:08 amSEA-MDW
20h 20m1 stop
$185Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Southwest Logo
5:40 am - 10:25 amMDW-SEA
6h 45m1 stop
Southwest Logo
6:45 am - 12:40 pmSEA-MDW
3h 55mnonstop
$187Southwest
Find Deal
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
8:42 pm - 11:53 amMDW-SEA
17h 11m2 stops
Frontier Logo
12:48 pm - 11:08 amSEA-MDW
20h 20m1 stop
$191Frontier
Find Deal
Fri, Dec 5 - Sat, Dec 13
Southwest Logo
8:00 am - 6:50 pmMDW-SEA
12h 50m1 stop
Southwest Logo
7:25 am - 1:30 pmSEA-MDW
4h 05mnonstop
$192Southwest
Find Deal
Fri, Feb 27 - Sun, Mar 1
Southwest Logo
5:55 pm - 10:50 pmMDW-SEA
6h 55m1 stop
Southwest Logo
11:45 am - 11:50 pmSEA-MDW
10h 05m1 stop
$196Southwest
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Sat, Feb 14 - Sat, Feb 28
Southwest Logo
8:30 am - 11:10 amMDW-SEA
4h 40mnonstop
Southwest Logo
6:35 am - 12:30 pmSEA-MDW
3h 55mnonstop
$197Southwest
Find Deal
Sat, Dec 6 - Thu, Dec 11
Frontier Logo
12:30 pm - 12:13 pmMDW-SEA
25h 43m1 stop
Frontier Logo
2:22 pm - 11:30 amSEA-MDW
19h 08m1 stop
$204Frontier
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Thu, Nov 13 - Sun, Nov 16
Southwest Logo
1:35 pm - 9:15 pmMDW-SEA
9h 40m1 stop
Southwest Logo
6:35 am - 12:30 pmSEA-MDW
3h 55mnonstop
$207Southwest
Find Deal
Sat, Dec 6 - Thu, Dec 11

Delta flights from Chicago Midway Airport to Seattle

Our best Delta deals on Chicago Midway Airport to Seattle flight tickets
Delta
Nov 8
MDW11:10 amChicago Midway
9h 13m
1 stop
SEA6:23 pmSeattle/Tacoma Intl
Nov 17
SEA11:55 pmSeattle/Tacoma Intl
7h 06m
1 stop
MDW9:01 amChicago Midway
$437
Find similar
Delta
Nov 8
MDW1:06 pmChicago Midway
7h 17m
1 stop
SEA6:23 pmSeattle/Tacoma Intl
Nov 17
SEA2:02 pmSeattle/Tacoma Intl
7h 38m
1 stop
MDW11:40 pmChicago Midway
$515
Find similar

Frontier flights from Chicago Midway Airport to Seattle

Our best Frontier deals on Chicago Midway Airport to Seattle flight tickets
Frontier
Dec 12
MDW12:18 pmChicago Midway
25h 35m
1 stop
SEA11:53 amSeattle/Tacoma Intl
Jan 11
SEA6:07 pmSeattle/Tacoma Intl
17h 02m
2 stops
MDW1:09 pmChicago Midway
$179
Find similar
Frontier
Dec 5
MDW12:18 pmChicago Midway
25h 35m
1 stop
SEA11:53 amSeattle/Tacoma Intl
Dec 7
SEA12:48 pmSeattle/Tacoma Intl
20h 20m
1 stop
MDW11:08 amChicago Midway
$185
Find similar
Frontier
Dec 5
MDW8:42 pmChicago Midway
17h 11m
2 stops
SEA11:53 amSeattle/Tacoma Intl
Dec 13
SEA12:48 pmSeattle/Tacoma Intl
20h 20m
1 stop
MDW11:08 amChicago Midway
$191
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago Midway Airport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Chicago Midway Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 2/5

8:05 am-10:50 am

Nonstop4h 45m

Seattle/Tacoma Intl

Sun 2/8

6:45 am-12:40 pm

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 12/12

12:18 pm-11:53 am

1 stop25h 35m

Seattle/Tacoma Intl

Sun 1/11

6:07 pm-1:09 pm

2 stops17h 02m

$179

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 12/5

12:18 pm-11:53 am

1 stop25h 35m

Seattle/Tacoma Intl

Sun 12/7

12:48 pm-11:08 am

1 stop20h 20m

$185

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 2/5

5:40 am-10:25 am

1 stop6h 45m

Seattle/Tacoma Intl

Sun 2/8

6:45 am-12:40 pm

Nonstop3h 55m

$187

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 12/5

8:42 pm-11:53 am

2 stops17h 11m

Seattle/Tacoma Intl

Sat 12/13

12:48 pm-11:08 am

1 stop20h 20m

$191

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 2/27

8:00 am-6:50 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sun 3/1

7:25 am-1:30 pm

Nonstop4h 05m

$192

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 2/14

5:55 pm-10:50 pm

1 stop6h 55m

Seattle/Tacoma Intl

Sat 2/28

11:45 am-11:50 pm

1 stop10h 05m

$196

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 12/6

8:30 am-11:10 am

Nonstop4h 40m

Seattle/Tacoma Intl

Thu 12/11

6:35 am-12:30 pm

Nonstop3h 55m

$197

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 11/13

12:30 pm-12:13 pm

1 stop25h 43m

Seattle/Tacoma Intl

Sun 11/16

2:22 pm-11:30 am

1 stop19h 08m

$204

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 12/6

1:35 pm-9:15 pm

1 stop9h 40m

Seattle/Tacoma Intl

Thu 12/11

6:35 am-12:30 pm

Nonstop3h 55m

$207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Chicago Midway Airport 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 to Seattle?

In general, January is the cheapest month to fly from Chicago Midway Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $199. If you don’t want to visit Seattle in January, then you should wait until August to fly from Chicago Midway Airport, when ticket prices are also cheap, with an average price of $258.

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

On average, the least expensive day to fly to Seattle from Chicago Midway Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $336. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Chicago Midway Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $454.

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

Flying to Seattle from Chicago Midway Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $377. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to Seattle from Chicago Midway Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Chicago Midway Airport for as low as $249 on momondo.

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

There is only 1 cabin class available to choose from on Chicago Midway 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 Midway Airport to Seattle flights?

You could potentially save up to 29% on your flight if you consider stops on a Chicago Midway Airport to Seattle flight.

When to book flights from Chicago Midway Airport to Seattle

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

Cheap Chicago Midway Airport to Seattle (MDW to SEA) flight deals and tips

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

Best Price Found

$168

Fastest flight time

4h 30m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Chicago Midway Airport in the past 72 hours is $168. The best round-trip flight deal from Chicago Midway Airport to Seattle found on momondo in the last 72 hours is $562.
The fastest flight from Chicago Midway Airport to Seattle takes 4h 30m
Direct flights go from Chicago Midway Airport to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

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

    There are 1729.4 mi between Chicago Midway and Seattle/Tacoma Intl. 4h 35m is a normal flight duration for this route.

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

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

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

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

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

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from Chicago Midway Airport to Seattle?

Best airlines flying from Chicago Midway Airport to Seattle

Compare and see reviews for airlines that fly from Chicago Midway Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $142Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
DeltaPriceFrom $169Free CancellationRating
7.9
7,994 reviews
Search Delta flights
SouthwestPriceFrom $189Free CancellationRating
8.0
4,238 reviews
Search Southwest flights

  • Southwest Flights From Chicago Midway Airport to Seattle

    Southwest flies from Chicago Midway Airport to Seattle around 4 times per week, with 4,238 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Chicago Midway Airport to Seattle in the last 72 hours was $189 (round-trip), much lower than the average airfare cost of $422 for Southwest flights on this route.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

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

Finding the right flight to Seattle from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

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

Flights from Chicago to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

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, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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