HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$161+ Cheap flights from Milwaukee to Seattle (MKE - 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Milwaukee to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Milwaukee-Mitchell to Seattle/Tacoma Intl are usually found in February or November, booked 52 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap flight deals from Milwaukee to Seattle

Cheapest flights from Milwaukee to Seattle
Explore the most affordable flight options available from Milwaukee to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.

This Southwest deal was found by Cheapflights users on 6/19. 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.
Mon 8/37:30 pm
MKE
-
SEA
1 stop7h 25m
Southwest
Mon 8/105:30 am
SEA
-
MKE
2 stops10h 45m
Southwest
Deal found 6/19$381
This Southwest deal was found by Cheapflights users on 6/20. 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 8/16:10 pm
MKE
-
SEA
2 stops9h 05m
Southwest
Wed 8/55:55 am
SEA
-
MKE
2 stops8h 45m
Southwest
Deal found 6/20$383
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:11 pm
MKE
-
SEA
2 stops12h 02m
United Airlines
Sat 7/115:00 am
SEA
-
MKE
1 stop6h 25m
United Airlines
Deal found 6/20$384
This Southwest deal was found by Cheapflights users on 6/24. 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 7/186:55 pm
MKE
-
SEA
1 stop8h 20m
Southwest
Thu 7/2311:10 am
SEA
-
MKE
2 stops9h 20m
Southwest
Deal found 6/24$385
This American Airlines deal was found by Cheapflights users on 6/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:40 pm
MKE
-
SEA
1 stop8h 17m
American Airlines
Tue 8/411:56 pm
SEA
-
MKE
1 stop10h 51m
American Airlines
Deal found 6/23$386
This Southwest deal was found by Cheapflights users on 6/20. 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.
Mon 8/174:20 pm
MKE
-
SEA
1 stop9h 35m
Southwest
Fri 8/217:00 am
SEA
-
MKE
2 stops8h 45m
Southwest
Deal found 6/20$387
This Southwest deal was found by Cheapflights users on 6/20. 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 7/246:35 pm
MKE
-
SEA
2 stops9h 10m
Southwest
Wed 7/2911:05 pm
SEA
-
MKE
2 stops10h 45m
Southwest
Deal found 6/20$389
This Southwest deal was found by Cheapflights users on 6/22. 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 7/306:35 pm
MKE
-
SEA
2 stops9h 10m
Southwest
Sat 8/85:00 am
SEA
-
MKE
1 stop12h 45m
Southwest
Deal found 6/22$390
This Southwest deal was found by Cheapflights users on 6/23. 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 7/186:55 pm
MKE
-
SEA
1 stop8h 20m
Southwest
Sat 7/255:30 am
SEA
-
MKE
2 stops16h 15m
Southwest
Deal found 6/23$391
This United Airlines deal was found by Cheapflights users on 6/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:35 pm
MKE
-
SEA
1 stop8h 40m
United Airlines
Sat 9/57:00 am
SEA
-
MKE
1 stop6h 47m
United Airlines
Deal found 6/23$393
This Southwest deal was found by Cheapflights users on 6/23. 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 8/2810:15 am
MKE
-
SEA
2 stops13h 00m
Southwest
Fri 9/411:05 pm
SEA
-
MKE
1 stop10h 00m
Southwest
Deal found 6/23$395
This American Airlines deal was found by Cheapflights users on 6/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:48 pm
MKE
-
SEA
1 stop7h 11m
American Airlines
Thu 8/205:50 am
SEA
-
MKE
1 stop13h 10m
American Airlines
Deal found 6/20$396

Find flight deals from Milwaukee to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) 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 June 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$381
(Southwest)

One-way from

$161
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$457

Good round-trip deal

$504 or less

Good one-way deal

$250 or less
Provider with most accurate pricing for Milwaukee-Mitchell-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Seattle/Tacoma Intl flights.
Search Deals
From Milwaukee-Mitchell to Seattle/Tacoma Intl
Search Deals
One-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Milwaukee-Mitchell to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee 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 June 24, 2026.
Use the filters below to find and compare flights from Milwaukee to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/1

6:10 pm-1:15 am

2 stops9h 05m

Seattle/Tacoma Intl

Wed 8/5

5:55 am-4:40 pm

2 stops8h 45m

$383
Quickest round-trip

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 7/30

7:30 pm-12:55 am

1 stop7h 25m

Seattle/Tacoma Intl

Mon 8/10

11:00 pm-9:50 am

1 stop8h 50m

$391

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/15

5:00 am-3:29 pm

2 stops12h 29m

Seattle/Tacoma Intl

Sat 8/22

5:00 am-1:29 pm

1 stop6h 29m

$398

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/8

6:30 am-2:25 pm

2 stops9h 55m

Seattle/Tacoma Intl

Tue 8/11

5:55 am-4:40 pm

2 stops8h 45m

$401

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 7/30

7:30 pm-12:55 am

1 stop7h 25m

Seattle/Tacoma Intl

Sun 8/2

8:05 pm-10:50 am

1 stop12h 45m

$405

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 8/4

4:25 pm-11:05 pm

2 stops8h 40m

Seattle/Tacoma Intl

Wed 8/12

5:55 am-4:40 pm

2 stops8h 45m

$411

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 7/30

6:35 pm-1:45 am

2 stops9h 10m

Seattle/Tacoma Intl

Tue 8/4

5:55 am-4:40 pm

2 stops8h 45m

$411

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 7/17

6:35 pm-1:45 am

2 stops9h 10m

Seattle/Tacoma Intl

Thu 7/23

11:10 am-10:30 pm

2 stops9h 20m

$418

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/11

3:52 pm-10:45 pm

1 stop8h 53m

Seattle/Tacoma Intl

Mon 9/14

6:52 pm-10:00 am

2 stops13h 08m

$428

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sun 8/30

12:50 pm-8:10 pm

1 stop9h 20m

Seattle/Tacoma Intl

Mon 9/7

5:30 am-6:15 pm

2 stops10h 45m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Milwaukee 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 Milwaukee to Seattle in June.
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 Milwaukee-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-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 Milwaukee-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 Milwaukee to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Milwaukee 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 Milwaukee to Seattle

How far ahead should I book a flight from Milwaukee to Seattle?

To ensure you get the cheapest price possible for a flight from Milwaukee to Seattle, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Milwaukee to Seattle?

Currently, February is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $277). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $457). 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 MKE to SEA?

Find hourly flight availability from Milwaukee 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 June 24, 2026.

When flying from Milwaukee to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Milwaukee to Seattle?

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 June 24, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta from Milwaukee 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.
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,568 reviews
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Southwest
7.9
Good
4,242 reviews
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Delta
7.8
Good
8,432 reviews
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
United Airlines
7.4
Good
9,881 reviews
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
American Airlines
7.1
Good
11,751 reviews
Alaska Airlines
7.9
Good
12,568 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

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

  • What airports do I use to fly from Milwaukee to Seattle?

    Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Milwaukee-Mitchell. Booking flights from Milwaukee-Mitchell (MKE) to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 4 daily flights to Seattle from 6 different airlines. 4h 18m is how long a flight from Milwaukee to Seattle/Tacoma Intl will take if you book a nonstop flight.

  • How popular is this Milwaukee to Seattle flight route?

    Within the past month, 12 users have taken a look at flights from Milwaukee-Mitchell to Seattle/Tacoma Intl.

  • How long is the flight from Milwaukee to Seattle?

    Southwest, United Airlines, and American Airlines can get you from Milwaukee to Seattle in just under 7h 25m. Your travel time can differ by up to 4h 37m. Milwaukee and Seattle are separated by a distance of 1689 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Milwaukee to Seattle round-trip?

    Flying on Delta is currently your cheapest option to Seattle, with prices starting at $107. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $178 and $194, respectively. Delta is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Milwaukee to Seattle one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $97. Users have also found prices from $102 and $105 on Frontier and Delta, respectively.

  • What are the most reliable airlines from Milwaukee to Seattle?

    Before booking your flight to Seattle from Milwaukee, check out the most reliable airlines to get you to your destination on time: Hawaiian Airlines (100%), American Airlines (88%), Alaska Airlines( 87%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $759, our data shows the cheapest flight currently is $227. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $323 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee 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 Milwaukee to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $277). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $457). 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
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Renton
Edmonds
Snoqualmie
Tumwater
Tukwila
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Milwaukee to Seattle

Discover the top 6 airlines that operate flights from Milwaukee 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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$107Average$294FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$366FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$194Average$385FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$201Average$378FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$206Average$373FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$226Average$363FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.