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$157+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
1 adult, Economy
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to Seattle/Tacoma Intl are usually found in February or November, booked 83 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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 May 9, 2026.

This Southwest deal was found by Cheapflights users on 5/6. 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 6/58:25 pm
MKE
-
SEA
1 stop7h 15m
Southwest
Tue 6/95:15 am
SEA
-
MKE
1 stop6h 45m
Southwest
Deal found 5/6$313
This Southwest deal was found by Cheapflights users on 5/6. 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 6/56:35 pm
MKE
-
SEA
2 stops9h 05m
Southwest
Mon 6/810:45 pm
SEA
-
MKE
1 stop8h 50m
Southwest
Deal found 5/6$318
This American Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 6/36:45 pm
MKE
-
SEA
1 stop7h 31m
American Airlines
Sat 6/611:58 pm
SEA
-
MKE
1 stop5h 44m
American Airlines
Deal found 5/6$321
This American Airlines deal was found by Cheapflights users on 5/6. 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 6/96:21 pm
MKE
-
SEA
1 stop8h 38m
American Airlines
Tue 2/1611:51 am
SEA
-
MKE
1 stop8h 16m
American Airlines
Deal found 5/6$322
This Southwest deal was found by Cheapflights users on 5/4. 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 7/206:35 pm
MKE
-
SEA
2 stops9h 05m
Southwest
Wed 7/226:30 am
SEA
-
MKE
1 stop13h 30m
Southwest
Deal found 5/4$324
This Southwest deal was found by Cheapflights users on 5/4. 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 6/56:35 pm
MKE
-
SEA
2 stops9h 05m
Southwest
Wed 6/105:15 am
SEA
-
MKE
1 stop6h 45m
Southwest
Deal found 5/4$326
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Wed 5/276:45 pm
MKE
-
SEA
1 stop7h 31m
American Airlines
Fri 5/2910:27 am
SEA
-
MKE
1 stop8h 37m
American Airlines
Deal found 5/8$327
This Southwest deal was found by Cheapflights users on 5/7. 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 8/274:20 pm
MKE
-
SEA
1 stop9h 10m
Southwest
Tue 9/111:05 pm
SEA
-
MKE
2 stops10h 55m
Southwest
Deal found 5/7$328
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Tue 5/265:00 am
MKE
-
SEA
1 stop6h 40m
United Airlines
Thu 5/285:07 am
SEA
-
MKE
1 stop6h 18m
United Airlines
Deal found 5/5$329
This United Airlines deal was found by Cheapflights users on 5/4. 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 9/1910:45 am
MKE
-
SEA
1 stop6h 51m
United Airlines
Mon 9/2811:59 pm
SEA
-
MKE
1 stop8h 01m
United Airlines
Deal found 5/4$330

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 May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$313
(American Airlines)

One-way from

$157
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$383

Good round-trip deal

$384 or less

Good one-way deal

$243 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. 15% potential increase in price ($61 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 May 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 May 9, 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 7/11

6:25 pm-12:35 am

1 stop8h 10m

Seattle/Tacoma Intl

Tue 7/14

10:45 pm-9:35 am

1 stop8h 50m

$313

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 7/10

8:25 pm-1:40 am

1 stop7h 15m

Seattle/Tacoma Intl

Tue 7/14

10:45 pm-9:35 am

1 stop8h 50m

$313

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 7/23

7:30 pm-12:50 am

1 stop7h 20m

Seattle/Tacoma Intl

Tue 7/28

11:05 pm-10:55 am

1 stop9h 50m

$318

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 9/10

2:00 pm-8:45 pm

1 stop8h 45m

Seattle/Tacoma Intl

Tue 9/15

11:05 pm-12:00 pm

2 stops10h 55m

$328
Quickest round-trip

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 9/19

10:45 am-3:36 pm

1 stop6h 51m

Seattle/Tacoma Intl

Mon 9/28

11:59 pm-10:00 am

1 stop8h 01m

$330

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 6/4

6:35 pm-1:40 am

2 stops9h 05m

Seattle/Tacoma Intl

Mon 6/8

10:45 pm-9:35 am

1 stop8h 50m

$373

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 7/14

7:05 pm-12:40 am

1 stop7h 35m

Seattle/Tacoma Intl

Sat 7/18

6:30 am-5:00 pm

1 stop8h 30m

$375

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/25

2:35 pm-11:26 pm

2 stops10h 51m

Seattle/Tacoma Intl

Tue 9/29

7:00 am-3:04 pm

1 stop6h 04m

$380

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/15

5:00 pm-9:30 pm

1 stop6h 30m

Seattle/Tacoma Intl

Sun 8/23

11:00 pm-10:10 am

1 stop9h 10m

$380

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 7/23

7:30 pm-12:50 am

1 stop7h 20m

Seattle/Tacoma Intl

Mon 7/27

10:45 pm-9:35 am

1 stop8h 50m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice 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 54 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 May 9, 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 May 9, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andHawaiian Airlines 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
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,349 reviews
Alaska Airlines
7.9
Good
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,457 reviews
Alaska Airlines
7.9
Good
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,696 reviews
Alaska Airlines
7.9
Good
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
American Airlines
7.1
Good
11,668 reviews
Alaska Airlines
7.9
Good
12,349 reviews

Boarding

8.1

Entertainment

7.0

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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 2 daily flights to Seattle from 6 different airlines. 4h 20m 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, 13 users have taken a look at flights from Milwaukee-Mitchell to Seattle/Tacoma Intl.

  • How long is the flight from Milwaukee to Seattle?

    Southwest can get you from Milwaukee to Seattle in just under 7h 15m. Your travel time can differ by up to . Milwaukee and Seattle are separated by a distance of 1689 mi.

  • 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 $149. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $176 and $178, respectively. Delta is 56% 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 $97 and $102 on Delta and Frontier, 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: Qatar Airways (100%), American Airlines (90%), Alaska Airlines( 90%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $409, our data shows the cheapest flight currently is $158. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $313 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
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Kirkland
Issaquah
Shoreline

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 May 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$269FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$176Average$338FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$178Average$375FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$205Average$366FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$208Average$368FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$226Average$357FlexibilityNo cancel feeOn-time69%

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