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$90+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Milwaukee-Mitchell to Seattle/Tacoma Intl are usually found in February or January, booked 61 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(Booking.com)

One-way from

$90
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$327

Good round-trip deal

$336 or less

Good one-way deal

$190 or less
Provider with most accurate pricing for Milwaukee-Mitchell-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Seattle/Tacoma Intl flights.
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From Milwaukee-Mitchell to Seattle/Tacoma Intl
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One-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 16% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 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 Milwaukee-Mitchell to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl.
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Find 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 September 29, 2025.

This Booking.com deal was found by Cheapflights users on 9/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:04 pmMKE - SEA
1 stop18h 09mFrontier
Sun 11/1612:58 pmSEA - MKE
2 stops28h 21mFrontier
Deal found 9/29$204
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/162:05 pmMKE - SEA
1 stop8h 49mAmerican Airlines
Thu 10/231:30 pmSEA - MKE
1 stop8h 44mAmerican Airlines
Deal found 9/28$211
This American Airlines deal was found by Cheapflights users on 9/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/182:18 pmMKE - SEA
1 stop8h 28mAmerican Airlines
Tue 10/2110:39 amSEA - MKE
1 stop7h 46mAmerican Airlines
Deal found 9/29$214
This Delta deal was found by Cheapflights users on 9/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:03 pmMKE - SEA
1 stop6h 54mDelta
Sun 10/2611:55 pmSEA - MKE
1 stop6h 24mDelta
Deal found 9/29$215
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:30 amMKE - SEA
2 stops9h 54mUnited Airlines
Sat 11/15:05 amSEA - MKE
1 stop6h 09mUnited Airlines
Deal found 9/27$220
This American Airlines deal was found by Cheapflights users on 9/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:59 pmMKE - SEA
1 stop9h 28mAmerican Airlines
Sun 11/212:59 amSEA - MKE
1 stop8h 21mAmerican Airlines
Deal found 9/27$223
This American Airlines deal was found by Cheapflights users on 9/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:26 amMKE - SEA
1 stop7h 20mAmerican Airlines
Mon 10/1312:34 amSEA - MKE
1 stop7h 44mAmerican Airlines
Deal found 9/27$225
This KAYAK deal was found by Cheapflights users on 9/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/63:56 pmMKE - SEA
Nonstop4h 29mAlaska Airlines
Wed 11/129:09 amSEA - MKE
Nonstop3h 51mAlaska Airlines
Deal found 9/26$229
This Cheapflightsfares deal was found by Cheapflights users on 9/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/223:29 pmMKE - SEA
Nonstop4h 30mAlaska Airlines
Tue 11/255:50 pmSEA - MKE
Nonstop3h 51mAlaska Airlines
Deal found 9/27$230
This Southwest deal was found by Cheapflights users on 9/28. 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.
Wed 10/2910:40 amMKE - SEA
2 stops10h 35mSouthwest
Sun 11/210:50 amSEA - MKE
1 stop11h 20mSouthwest
Deal found 9/28$231
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:47 pmMKE - SEA
Nonstop4h 23mAlaska Airlines
Sat 11/19:09 amSEA - MKE
Nonstop3h 51mAlaska Airlines
Deal found 9/27$237

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 September 29, 2025.
Use the filters below to find and compare flights from Milwaukee to Seattle that are best for you.

Fly from

Milwaukee

Fly to

Seattle

Route

Depart

Return

Price

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 11/18

7:31 pm-12:01 am

1 stop6h 30m

Seattle/Tacoma Intl

Mon 11/24

11:10 pm-8:41 am

1 stop7h 31m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 10/20

7:03 pm-11:57 pm

1 stop6h 54m

Seattle/Tacoma Intl

Sun 10/26

11:55 pm-8:19 am

1 stop6h 24m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 12/25

4:04 pm-11:31 pm

1 stop9h 27m

Seattle/Tacoma Intl

Wed 12/31

6:10 am-3:24 pm

1 stop7h 14m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 12/8

7:31 pm-12:24 am

1 stop6h 53m

Seattle/Tacoma Intl

Thu 12/11

1:45 pm-9:21 pm

1 stop5h 36m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 12/24

4:04 pm-11:31 pm

1 stop9h 27m

Seattle/Tacoma Intl

Sun 12/28

12:55 am-10:23 am

1 stop7h 28m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 11/5

10:56 am-4:54 pm

1 stop7h 58m

Seattle/Tacoma Intl

Sun 11/9

11:55 pm-8:15 am

1 stop6h 20m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 10/24

4:49 pm-10:03 pm

1 stop7h 14m

Seattle/Tacoma Intl

Sun 10/26

11:55 pm-8:19 am

1 stop6h 24m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 11/7

4:49 pm-10:03 pm

1 stop7h 14m

Seattle/Tacoma Intl

Mon 11/10

11:55 pm-8:15 am

1 stop6h 20m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 10/23

7:03 pm-11:57 pm

1 stop6h 54m

Seattle/Tacoma Intl

Sun 10/26

11:55 pm-8:19 am

1 stop6h 24m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 10/25

8:30 am-4:24 pm

2 stops9h 54m

Seattle/Tacoma Intl

Sat 11/1

5:05 am-1:14 pm

1 stop6h 09m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Showing 1-10 of 22 results
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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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to Seattle. Price data was last updated on September 26, 2025.

To ensure you get the cheapest price possible for a flight from Milwaukee to Seattle, you should look to book at least 61 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, January is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $238). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $388). 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 September 29, 2025.

It’s optimal to fly from Milwaukee to Seattle in the evening. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Milwaukee to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Milwaukee to Seattle. Price data was last updated on September 21, 2025.

Travelers seeking maximum savings on their Milwaukee to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday mornings 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 September 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian 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
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,755 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 6 daily flights to Seattle from 7 different airlines. 4h 17m 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, 25 users have taken a look at flights from Milwaukee-Mitchell to Seattle/Tacoma Intl.

  • How long is the flight from Milwaukee to Seattle?

    Delta can get you from Milwaukee to Seattle in just under 6h 30m. 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 Sun Country Air is currently your cheapest option to Seattle, with prices starting at $137. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $165 and $178, respectively. Sun Country Air is 62% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 (92%), American Airlines (86%), Alaska Airlines( 86%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $731, 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 $194 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, January is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $238). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $388). 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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Alternative routes for Milwaukee to Seattle

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Top 7 airlines flying from Milwaukee to Seattle

Discover the top 7 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$374FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$165Average$381FlexibilityNo cancel feeOn-time63%
DeltaCheapest$178Average$292FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$212Average$394FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$320FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$400FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$257Average$406FlexibilityNo cancel feeOn-time75%

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