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$89+ Cheap flights from Midway (MDW) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago Midway to Seattle/Tacoma Intl are usually found in August or April, booked 58 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Midway to Seattle

Cheapest flights from Midway to Seattle
Explore the most affordable flight options available from Midway to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/139:55 pm
MDW
-
SEA
Nonstop4h 35m
Southwest
Sun 3/2211:55 pm
SEA
-
MDW
Nonstop3h 55m
Southwest
Deal found 1/28$177
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:55 pm
MDW
-
SEA
Nonstop4h 35m
Southwest
Mon 3/91:20 pm
SEA
-
MDW
1 stop6h 40m
Southwest
Deal found 1/28$183
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/283:15 pm
MDW
-
SEA
1 stop9h 35m
Southwest
Sat 3/711:55 pm
SEA
-
MDW
Nonstop3h 55m
Southwest
Deal found 1/28$187
This Southwest deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:55 am
MDW
-
SEA
1 stop12h 35m
Southwest
Mon 2/236:35 am
SEA
-
MDW
Nonstop4h 00m
Southwest
Deal found 1/27$193
This Southwest deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:55 am
MDW
-
SEA
1 stop12h 35m
Southwest
Tue 2/242:05 pm
SEA
-
MDW
1 stop5h 45m
Southwest
Deal found 1/27$202
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:40 pm
MDW
-
SEA
Nonstop4h 35m
Southwest
Mon 3/239:30 pm
SEA
-
MDW
1 stop6h 15m
Southwest
Deal found 1/28$207
This Southwest deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:35 pm
MDW
-
SEA
2 stops8h 50m
Southwest
Sun 3/811:55 pm
SEA
-
MDW
Nonstop3h 55m
Southwest
Deal found 1/27$212
This Southwest deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:00 am
MDW
-
SEA
1 stop12h 50m
Southwest
Sun 3/17:25 am
SEA
-
MDW
Nonstop4h 05m
Southwest
Deal found 1/27$213
This Southwest deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:35 am
MDW
-
SEA
Nonstop4h 40m
Southwest
Wed 2/185:15 am
SEA
-
MDW
1 stop7h 30m
Southwest
Deal found 1/26$214

Find flight deals from Midway to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Midway (MDW) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Southwest)

One-way from

$89
(Southwest)

Popular in

December

Cheapest in

August

Average price

$327

Good round-trip deal

$186 or less

Good one-way deal

$108 or less
Provider with most accurate pricing for Chicago Midway-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago Midway-Seattle/Tacoma Intl flights.
Search Deals
From Chicago Midway to Seattle/Tacoma Intl
Search Deals
One-way flight from Chicago Midway to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Chicago Midway to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Chicago Midway to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Midway 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Chicago Midway Airport to Seattle that are best for you.

Fly from

Midway

Fly to

Seattle

Route

Depart

Return

Price

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 3/14

9:40 pm-12:15 am

Nonstop4h 35m

Seattle/Tacoma Intl

Sun 3/22

11:55 pm-5:50 am

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 3/6

9:55 pm-12:30 am

Nonstop4h 35m

Seattle/Tacoma Intl

Mon 3/9

11:55 pm-5:50 am

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 3/20

9:55 pm-12:30 am

Nonstop4h 35m

Seattle/Tacoma Intl

Mon 3/23

11:55 pm-5:50 am

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Wed 2/25

10:35 am-1:15 pm

Nonstop4h 40m

Seattle/Tacoma Intl

Wed 3/4

6:45 am-12:40 pm

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 3/21

9:40 pm-12:15 am

Nonstop4h 35m

Seattle/Tacoma Intl

Mon 3/23

11:55 pm-5:50 am

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 3/5

9:55 pm-12:30 am

Nonstop4h 35m

Seattle/Tacoma Intl

Mon 3/9

11:55 pm-5:50 am

Nonstop3h 55m

$177

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 3/14

9:40 pm-12:15 am

Nonstop4h 35m

Seattle/Tacoma Intl

Sat 3/21

7:55 pm-5:35 am

1 stop7h 40m

$187

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 3/19

6:05 am-2:00 pm

1 stop9h 55m

Seattle/Tacoma Intl

Mon 3/23

11:55 pm-5:50 am

Nonstop3h 55m

$187

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Mon 3/16

6:05 am-2:00 pm

1 stop9h 55m

Seattle/Tacoma Intl

Thu 3/19

5:15 am-11:10 am

Nonstop3h 55m

$187

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Tue 3/17

5:50 pm-12:20 am

1 stop8h 30m

Seattle/Tacoma Intl

Sun 3/22

11:55 pm-5:50 am

Nonstop3h 55m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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2
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Compare providers for flights from Midway to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Midway to Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago Midway Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago Midway Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago Midway Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago Midway Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago Midway Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Midway to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Midway with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago Midway Airport to Seattle

How far ahead should I book a flight from Chicago Midway Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Midway to Seattle. Price data was last updated on January 23, 2026.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago Midway Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago Midway Airport to Seattle?

Currently, November is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $121). Flying from Chicago Midway Airport to Seattle in December is currently the most expensive (average of $564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MDW to SEA?

Find hourly flight availability from Midway to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

It’s typically best to fly out from Chicago Midway Airport to Seattle in the evening. Doing so could potentially save you 50% on the flight price compared to flying in the afternoon, which is usually more expensive.

The best insider tips for Chicago Midway Airport to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago Midway Airport to Seattle trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MDW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown Southwest and Frontier from Chicago Midway Airport to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Midway to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Chicago Midway?

    For a flight from Chicago Midway to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 inbound flights from Chicago Midway per day. 2 airlines have flights to Seattle/Tacoma Intl from Chicago Midway on a regular basis.

  • How long is the flight from Chicago Midway Airport to Seattle?

    Airlines like Southwest fly from Chicago Midway Airport to Seattle in about 4h 35m. The time it takes to get you to your destination is usually consistent. The distance between Chicago Midway Airport and Seattle is about 1728 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Chicago Midway Airport to Seattle round-trip?

    Frontier, at $142, was found to be the cheapest airline from Chicago Midway Airport to Seattle. An alternate airline flying to your destination would be Southwest. Users have found that Frontier is 63% cheaper than the other options available to this destination.

  • What are the cheapest flights from Chicago Midway Airport to Seattle?

    The cheapest flight price from Chicago Midway Airport to Seattle is $78. On average you can expect to pay $225. The most popular route, (Chicago Midway - Seattle/Tacoma Intl), can usually be booked for $177.

  • Can I find deals for flights from Midway to Seattle that include hotel bookings?

    Yes. In addition to deals on Midway to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Midway to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Midway to Seattle.

  • Can I find deals for business class flights from Midway to Seattle?

    Yes. Cheapflights offers flight deals from Midway to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago Midway Airport to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $121). Flying from Chicago Midway Airport to Seattle in December is currently the most expensive (average of $564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Midway to Seattle

Discover the top 2 airlines that operate flights from Midway to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$270FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$194Average$432FlexibilityNo cancel feeOn-time63%

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