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Cheap flights from Chicago Midway Airport to Seattle from $95

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 9/27. 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 (MDW-SEA)

Cheap round-trip flights

Frontier Logo
4:48 pm - 12:30 amMDW-SEA
9h 42m1 stop
Frontier Logo
6:12 am - 3:53 pmSEA-MDW
7h 41m1 stop
$174Frontier
Find Deal
lun., sep. 29 - vie., oct. 3
Frontier Logo
6:24 pm - 7:33 amMDW-SEA
15h 09m1 stop
Frontier Logo
8:43 pm - 11:16 amSEA-MDW
12h 33m1 stop
$181Frontier
Find Deal
jue., oct. 23 - dom., oct. 26
Frontier Logo
6:24 pm - 12:07 pmMDW-SEA
19h 43m1 stop
Frontier Logo
10:16 am - 11:20 pmSEA-MDW
11h 04m1 stop
$187Frontier
Find Deal
vie., oct. 17 - lun., oct. 20
Southwest Logo
8:55 pm - 11:25 pmMDW-SEA
4h 30mnonstop
Southwest Logo
5:35 am - 11:30 amSEA-MDW
3h 55mnonstop
$189Southwest
Find Deal
mar., sep. 23 - mar., sep. 30
Southwest Logo
9:05 am - 11:40 amMDW-SEA
4h 35mnonstop
Southwest Logo
2:20 pm - 10:15 pmSEA-MDW
5h 55m1 stop
$194Southwest
Find Deal
vie., oct. 31 - mar., nov. 4
Frontier Logo
4:48 pm - 12:30 amMDW-SEA
9h 42m1 stop
Frontier Logo
6:12 am - 3:53 pmSEA-MDW
7h 41m1 stop
$195Frontier
Find Deal
vie., sep. 12 - lun., sep. 15
Southwest Logo
8:25 am - 2:10 pmMDW-SEA
7h 45m1 stop
Southwest Logo
11:10 pm - 5:15 amSEA-MDW
4h 05mnonstop
$199Southwest
Find Deal
mar., sep. 23 - mar., sep. 30
Southwest Logo
5:40 am - 10:30 amMDW-SEA
6h 50m1 stop
Southwest Logo
2:20 pm - 10:15 pmSEA-MDW
5h 55m1 stop
$203Southwest
Find Deal
vie., oct. 31 - mar., nov. 4
Southwest Logo
8:25 am - 2:10 pmMDW-SEA
7h 45m1 stop
Southwest Logo
10:45 pm - 9:00 amSEA-MDW
8h 15m1 stop
$208Southwest
Find Deal
mar., sep. 23 - mar., sep. 30
Southwest Logo
8:55 pm - 11:25 pmMDW-SEA
4h 30mnonstop
Southwest Logo
5:55 am - 11:55 amSEA-MDW
4h 00mnonstop
$210Southwest
Find Deal
mar., sep. 16 - sáb., sep. 20

Frontier flights from Chicago Midway Airport to Seattle

Our best Frontier deals on Chicago Midway Airport to Seattle flight tickets
Frontier
Sep 29
MDW4:48 pmChicago Midway
9h 42m
1 stop
SEA12:30 amSeattle/Tacoma Intl
Oct 3
SEA6:12 amSeattle/Tacoma Intl
7h 41m
1 stop
MDW3:53 pmChicago Midway
$174
Find similar
Frontier
Oct 23
MDW6:24 pmChicago Midway
15h 09m
1 stop
SEA7:33 amSeattle/Tacoma Intl
Oct 26
SEA8:43 pmSeattle/Tacoma Intl
12h 33m
1 stop
MDW11:16 amChicago Midway
$181
Find similar
Frontier
Oct 17
MDW6:24 pmChicago Midway
19h 43m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 20
SEA10:16 amSeattle/Tacoma Intl
11h 04m
1 stop
MDW11:20 pmChicago Midway
$187
Find similar

Southwest flights from Chicago Midway Airport to Seattle

Our best Southwest deals on Chicago Midway Airport to Seattle flight tickets
Southwest
Sep 23
MDW8:55 pmChicago Midway
4h 30m
SEA11:25 pmSeattle/Tacoma Intl
Sep 30
SEA5:35 amSeattle/Tacoma Intl
3h 55m
MDW11:30 amChicago Midway
$189
Find similar
Southwest
Oct 31
MDW9:05 amChicago Midway
4h 35m
SEA11:40 amSeattle/Tacoma Intl
Nov 4
SEA2:20 pmSeattle/Tacoma Intl
5h 55m
1 stop
MDW10:15 pmChicago Midway
$194
Find similar
Southwest
Sep 23
MDW8:25 amChicago Midway
7h 45m
1 stop
SEA2:10 pmSeattle/Tacoma Intl
Sep 30
SEA11:10 pmSeattle/Tacoma Intl
4h 05m
MDW5:15 amChicago Midway
$199
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 agosto 25, 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

lun. 9/29

4:48 pm-12:30 am

1 stop9h 42m

Seattle/Tacoma Intl

vie. 10/3

6:12 am-3:53 pm

1 stop7h 41m

$174

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

jue. 10/23

6:24 pm-7:33 am

1 stop15h 09m

Seattle/Tacoma Intl

dom. 10/26

8:43 pm-11:16 am

1 stop12h 33m

$181

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

vie. 10/17

6:24 pm-12:07 pm

1 stop19h 43m

Seattle/Tacoma Intl

lun. 10/20

10:16 am-11:20 pm

1 stop11h 04m

$187

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 9/23

8:55 pm-11:25 pm

Nonstop4h 30m

Seattle/Tacoma Intl

mar. 9/30

5:35 am-11:30 am

Nonstop3h 55m

$189

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

vie. 10/31

9:05 am-11:40 am

Nonstop4h 35m

Seattle/Tacoma Intl

mar. 11/4

2:20 pm-10:15 pm

1 stop5h 55m

$194

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

vie. 9/12

4:48 pm-12:30 am

1 stop9h 42m

Seattle/Tacoma Intl

lun. 9/15

6:12 am-3:53 pm

1 stop7h 41m

$195

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 9/23

8:25 am-2:10 pm

1 stop7h 45m

Seattle/Tacoma Intl

mar. 9/30

11:10 pm-5:15 am

Nonstop4h 05m

$199

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

vie. 10/31

5:40 am-10:30 am

1 stop6h 50m

Seattle/Tacoma Intl

mar. 11/4

2:20 pm-10:15 pm

1 stop5h 55m

$203

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 9/23

8:25 am-2:10 pm

1 stop7h 45m

Seattle/Tacoma Intl

mar. 9/30

10:45 pm-9:00 am

1 stop8h 15m

$208

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 9/16

8:55 pm-11:25 pm

Nonstop4h 30m

Seattle/Tacoma Intl

sáb. 9/20

5:55 am-11:55 am

Nonstop4h 00m

$210

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 $273.

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 $333. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $443.

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 $323 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $378. 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 $367 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 are 1 cabin classes 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?

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

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

$124

Fastest flight time

4h 25m

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 $124. The best round-trip flight deal from Chicago Midway Airport to Seattle found on momondo in the last 72 hours is $249.
The fastest flight from Chicago Midway Airport to Seattle takes 4h 25m
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 30m 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
3,201 reviews
Search Frontier flights
DeltaPriceFrom $169Free CancellationRating
7.9
7,981 reviews
Search Delta flights
SouthwestPriceFrom $194Free CancellationRating
8.0
4,243 reviews
Search Southwest flights

  • Southwest Flights From Chicago Midway Airport to Seattle

    Southwest flies from Chicago Midway Airport to Seattle around 12 times per week, with 4,243 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Chicago Midway Airport to Seattle in the last 72 hours was $194 (round-trip), much lower than the average airfare cost of $415 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
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Cle Elum
Tukwila
Kirkland
Centralia
Lakewood
Shoreline
Fife
Redmond
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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