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$98+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — SEA
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 Wednesday or Monday 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 septiembre 17, 2025.

Round-trip from

$168
(Flightnetwork)

One-way from

$98
(Southwest)

Popular in

July

Cheapest in

January

Average price

$407

Good round-trip deal

$189 or less

Good one-way deal

$208 or less
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. 12% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 17, 2025.

This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/236:24 pmMDW - SEA
1 stop15h 09mFrontier
lun. 10/2710:16 amSEA - MDW
1 stop11h 04mFrontier
Deal found 9/15$168
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/251:06 pmMDW - SEA
1 stop7h 17mDelta
vie. 10/3111:55 pmSEA - MDW
1 stop8h 35mDelta
Deal found 9/17$175
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/34:48 pmMDW - SEA
1 stop9h 42mFrontier
vie. 10/1010:16 amSEA - MDW
1 stop11h 04mFrontier
Deal found 9/14$181
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:24 pmMDW - SEA
1 stop19h 43mFrontier
dom. 10/198:43 pmSEA - MDW
1 stop25h 41mFrontier
Deal found 9/17$182
This Booking.com deal was found by Cheapflights users on 9/14. 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.
vie. 10/176:24 pmMDW - SEA
1 stop19h 43mFrontier
lun. 10/202:31 pmSEA - MDW
1 stop7h 53mFrontier
Deal found 9/14$183
This Frontier deal was found by Cheapflights users on 9/15. 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.
lun. 9/294:48 pmMDW - SEA
1 stop9h 42mFrontier
vie. 10/36:12 amSEA - MDW
1 stop7h 41mFrontier
Deal found 9/15$191
This Southwest deal was found by Cheapflights users on 9/17. 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.
sáb. 10/255:00 amMDW - SEA
1 stop8h 10mSouthwest
vie. 10/315:45 amSEA - MDW
Nonstop4h 00mSouthwest
Deal found 9/17$192
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/34:48 pmMDW - SEA
1 stop9h 42mFrontier
lun. 10/66:12 amSEA - MDW
1 stop7h 41mFrontier
Deal found 9/16$198
This Booking.com deal was found by Cheapflights users on 9/16. 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.
vie. 10/106:24 pmMDW - SEA
1 stop19h 43mFrontier
dom. 10/128:43 pmSEA - MDW
1 stop10h 48mFrontier
Deal found 9/16$200
This Southwest deal was found by Cheapflights users on 9/16. 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.
mié. 11/55:15 amMDW - SEA
1 stop8h 40mSouthwest
mié. 11/125:15 amSEA - MDW
1 stop9h 05mSouthwest
Deal found 9/16$201

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 septiembre 17, 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

sáb. 10/25

9:15 am-11:50 am

Nonstop4h 35m

Seattle/Tacoma Intl

vie. 10/31

5:45 am-11:45 am

Nonstop4h 00m

$194

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mié. 11/5

5:15 am-11:55 am

1 stop8h 40m

Seattle/Tacoma Intl

mié. 11/12

5:15 am-4:20 pm

1 stop9h 05m

$201

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mié. 11/19

10:50 am-1:25 pm

Nonstop4h 35m

Seattle/Tacoma Intl

dom. 11/23

6:35 am-12:30 pm

Nonstop3h 55m

$239

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

sáb. 10/18

5:15 am-11:35 am

1 stop8h 20m

Seattle/Tacoma Intl

sáb. 10/25

6:35 am-8:05 pm

1 stop11h 30m

$254

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

dom. 12/14

5:25 pm-8:00 pm

Nonstop4h 35m

Seattle/Tacoma Intl

dom. 1/4

7:50 pm-9:35 am

1 stop11h 45m

$272

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 10/14

3:25 pm-11:00 pm

1 stop9h 35m

Seattle/Tacoma Intl

sáb. 10/18

5:45 am-11:45 am

Nonstop4h 00m

$273

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mié. 10/15

11:15 am-10:00 pm

2 stops12h 45m

Seattle/Tacoma Intl

jue. 10/16

5:15 am-11:10 am

Nonstop3h 55m

$277

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

sáb. 10/25

9:15 am-11:50 am

Nonstop4h 35m

$105

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 12/9

10:50 am-1:25 pm

Nonstop4h 35m

$105

ChicagoSeattle

MDW - SEA

MDWSEA

Chicago Midway

mar. 10/28

7:00 pm-11:45 pm

1 stop6h 45m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
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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

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 September 12, 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, January is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $238). Flying from Chicago Midway Airport to Seattle in June is currently the most expensive (average of $387). 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 septiembre 17, 2025.

It’s typically best to fly out from Chicago Midway Airport to Seattle in the evening. Doing so could potentially save you 44% 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 September 14, 2025.

Travelers seeking maximum savings on their Chicago Midway Airport to Seattle flight should consider departing on Thursday 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.

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 septiembre 17, 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

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

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

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

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
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

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
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

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 2 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 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.Alternate airlines to your destination round-trip include Delta and Southwest. Users have found that Frontier is 62% 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 $94. On average you can expect to pay $289. The most popular route, (Chicago Midway - Seattle/Tacoma Intl), can usually be booked for $173.

  • 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, January is the cheapest month in which you can book a flight from Chicago Midway Airport to Seattle (average of $238). Flying from Chicago Midway Airport to Seattle in June is currently the most expensive (average of $387). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$142Average$278FlexibilityNo cancel feeOn-time62%
DeltaCheapest$169Average$314FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$194Average$417FlexibilityNo cancel feeOn-time63%

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