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$91+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago Midway to Seattle/Tacoma Intl are usually found in January or August, booked 58 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$174
(Kiwi.com)

One-way from

$91
(Priceline)

Popular in

July

Cheapest in

January

Average price

$461

Good round-trip deal

$562 or less

Good one-way deal

$168 or less
Provider with most accurate pricing for Chicago Midway-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago Midway-Seattle/Tacoma Intl flights.
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From Chicago Midway to Seattle/Tacoma Intl
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One-way flight from Chicago Midway to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Chicago Midway to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Chicago Midway to Seattle/Tacoma Intl.
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Find 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 October 30, 2025.

This Southwest deal was found by Cheapflights users on 10/29. 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 12/68:30 amMDW - SEA
Nonstop4h 40mSouthwest
Sun 12/146:35 amSEA - MDW
Nonstop3h 55mSouthwest
Deal found 10/29$197
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:56 pmMDW - SEA
2 stops20h 11mFrontier
Mon 11/249:12 amSEA - MDW
1 stop13h 01mFrontier
Deal found 10/29$200
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:30 amMDW - SEA
2 stops28h 26mFrontier
Mon 11/249:12 amSEA - MDW
1 stop13h 01mFrontier
Deal found 10/28$211
This Southwest deal was found by Cheapflights users on 10/29. 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 12/48:45 amMDW - SEA
1 stop9h 45mSouthwest
Wed 12/106:35 amSEA - MDW
Nonstop3h 55mSouthwest
Deal found 10/29$217
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:15 amMDW - SEA
1 stop12h 21mFrontier
Mon 12/227:48 pmSEA - MDW
1 stop12h 31mFrontier
Deal found 10/30$220
This Southwest deal was found by Cheapflights users on 10/28. 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 12/1112:05 pmMDW - SEA
1 stop12h 25mSouthwest
Sat 12/135:45 amSEA - MDW
Nonstop3h 55mSouthwest
Deal found 10/28$222
This Southwest deal was found by Cheapflights users on 10/30. 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 12/62:05 pmMDW - SEA
1 stop7h 55mSouthwest
Sat 12/135:45 amSEA - MDW
Nonstop3h 55mSouthwest
Deal found 10/30$227
This Southwest deal was found by Cheapflights users on 10/29. 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 11/2010:50 amMDW - SEA
Nonstop4h 35mSouthwest
Wed 12/313:05 pmSEA - MDW
1 stop12h 00mSouthwest
Deal found 10/29$237
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:30 pmMDW - SEA
1 stop25h 37mFrontier
Sat 11/1512:58 pmSEA - MDW
1 stop20h 32mFrontier
Deal found 10/30$238

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 October 30, 2025.
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

Fri 1/16

8:05 am-10:50 am

Nonstop4h 45m

Seattle/Tacoma Intl

Mon 1/19

6:35 am-12:35 pm

Nonstop4h 00m

$207

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 12/4

8:45 am-4:30 pm

1 stop9h 45m

Seattle/Tacoma Intl

Wed 12/10

6:35 am-12:30 pm

Nonstop3h 55m

$217

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 11/20

3:10 pm-10:30 pm

1 stop9h 20m

Seattle/Tacoma Intl

Wed 12/31

3:05 pm-5:05 am

1 stop12h 00m

$217

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Fri 12/5

12:20 pm-6:40 pm

1 stop8h 20m

Seattle/Tacoma Intl

Tue 12/9

6:35 am-12:30 pm

Nonstop3h 55m

$237

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 12/6

6:40 am-4:50 pm

2 stops12h 10m

Seattle/Tacoma Intl

Fri 12/12

6:35 am-12:30 pm

Nonstop3h 55m

$242

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Thu 11/27

5:30 am-10:05 am

1 stop6h 35m

Seattle/Tacoma Intl

Wed 12/10

5:15 am-3:00 pm

1 stop7h 45m

$266

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Wed 12/10

3:15 pm-10:55 pm

1 stop9h 40m

Seattle/Tacoma Intl

Wed 12/17

5:05 pm-5:05 am

2 stops10h 00m

$272

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Wed 12/3

5:15 am-11:55 am

1 stop8h 40m

Seattle/Tacoma Intl

Mon 12/15

5:05 pm-5:05 am

2 stops10h 00m

$272

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Sat 11/22

7:00 pm-9:35 pm

Nonstop4h 35m

Seattle/Tacoma Intl

Tue 11/25

5:35 am-7:00 pm

2 stops11h 25m

$277

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

Wed 1/28

10:05 am-5:50 pm

1 stop9h 45m

$98

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 19 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago Midway Airport-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 2025.

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, February is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $142). Flying from Chicago Midway Airport to Seattle in October is currently the most expensive (average of $307). 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 October 30, 2025.

It’s typically best to fly out from Chicago Midway Airport to Seattle in the evening. Doing so could potentially save you 43% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Chicago Midway Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Midway to Seattle. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Chicago Midway Airport to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Chicago Midway Airport to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago Midway Airport to Seattle trip
Airports
MDW

Use the Orange Line train for a quick, cost-effective trip to MDW, taking less than 30 minutes from downtown Chicago.

Read more about MDWby Ramsey Qubein
SEA

Take the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes under 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MDW

Ramsey Qubein

Ramsey Qubein

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

Brandon Schultz

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 October 30, 2025.
Read reviews from past customers who have flown Southwest, Delta, 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
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,993 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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. 3 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 45m. 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.Alternate airlines to your destination round-trip include Delta and 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 $115. On average you can expect to pay $431. 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, February is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $142). Flying from Chicago Midway Airport to Seattle in October is currently the most expensive (average of $307). 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
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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Top 3 airlines flying from Midway to Seattle

Discover the top 3 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$169Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$189Average$426FlexibilityNo cancel feeOn-time63%

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