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$77+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 September, 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 August 14, 2025.

Round-trip from

$195
(Delta)

One-way from

$77
(Priceline)

Popular in

June

Cheapest in

February

Average price

$381

Good round-trip deal

$295 or less

Good one-way deal

$283 or less
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. 17% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:03 pmMKE - SEA
1 stop6h 54mDelta
Mon 10/2011:55 pmSEA - MKE
1 stop6h 24mDelta
Deal found 8/14$195
This Frontier deal was found by Cheapflights users on 8/13. 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.
Fri 9/127:36 pmMKE - SEA
1 stop6h 54mFrontier
Sun 9/148:35 pmSEA - MKE
2 stops20h 44mFrontier
Deal found 8/13$198
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 10/32:23 pmMKE - SEA
1 stop7h 46mAmerican Airlines
Sat 10/112:52 pmSEA - MKE
1 stop7h 04mAmerican Airlines
Deal found 8/12$199
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/311:25 amMKE - SEA
1 stop9h 44mAmerican Airlines
Tue 9/910:11 amSEA - MKE
1 stop7h 49mAmerican Airlines
Deal found 8/12$204
This Southwest deal was found by Cheapflights users on 8/13. 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.
Tue 9/25:15 pmMKE - SEA
1 stop8h 50mSouthwest
Wed 9/106:45 amSEA - MKE
1 stop7h 20mSouthwest
Deal found 8/13$205
This Southwest deal was found by Cheapflights users on 8/13. 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 9/35:15 pmMKE - SEA
1 stop8h 50mSouthwest
Sat 9/67:35 amSEA - MKE
1 stop11h 55mSouthwest
Deal found 8/13$210
This Southwest deal was found by Cheapflights users on 8/13. 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.
Tue 8/262:45 pmMKE - SEA
1 stop8h 55mSouthwest
Sun 8/316:10 amSEA - MKE
1 stop8h 45mSouthwest
Deal found 8/13$216
This Southwest deal was found by Cheapflights users on 8/13. 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 8/206:15 pmMKE - SEA
1 stop6h 55mSouthwest
Tue 8/266:45 amSEA - MKE
1 stop9h 30mSouthwest
Deal found 8/13$219
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:40 pmMKE - SEA
1 stop9h 40mSouthwest
Sat 9/67:35 amSEA - MKE
1 stop11h 55mSouthwest
Deal found 8/14$220
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/158:04 pmMKE - SEA
1 stop6h 26mFrontier
Sun 9/218:35 pmSEA - MKE
2 stops20h 44mFrontier
Deal found 8/14$225
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:25 pmMKE - SEA
1 stop7h 18mDelta
Sat 9/2011:10 pmSEA - MKE
1 stop7h 32mDelta
Deal found 8/14$226

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 August 14, 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

Thu 10/16

7:03 pm-11:57 pm

1 stop6h 54m

Seattle/Tacoma Intl

Mon 10/20

11:55 pm-8:19 am

1 stop6h 24m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 9/9

7:30 am-2:43 pm

1 stop9h 13m

Seattle/Tacoma Intl

Fri 10/3

6:00 am-3:11 pm

1 stop7h 11m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 10/8

7:03 pm-11:57 pm

1 stop6h 54m

Seattle/Tacoma Intl

Sat 10/11

11:55 pm-8:19 am

1 stop6h 24m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 9/18

5:49 pm-11:43 pm

1 stop7h 54m

Seattle/Tacoma Intl

Mon 9/22

11:40 pm-8:15 am

1 stop6h 35m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 10/23

7:30 am-2:45 pm

1 stop9h 15m

Seattle/Tacoma Intl

Tue 10/28

1:30 pm-9:30 pm

1 stop6h 00m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 10/23

7:30 am-2:45 pm

1 stop9h 15m

Seattle/Tacoma Intl

Mon 10/27

11:15 pm-8:44 am

1 stop7h 29m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 9/11

5:49 pm-11:43 pm

1 stop7h 54m

Seattle/Tacoma Intl

Wed 9/17

11:40 pm-8:15 am

1 stop6h 35m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 1/8

7:15 am-3:08 pm

1 stop9h 53m

Seattle/Tacoma Intl

Thu 1/22

6:05 am-4:46 pm

1 stop8h 41m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 9/15

8:04 pm-12:30 am

1 stop6h 26m

$77

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 9/22

8:04 pm-12:30 am

1 stop6h 26m

$77

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 16 results
1
2

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 August 8, 2025.

To ensure you get the cheapest price possible for a flight from Milwaukee to Seattle, you should look to book at least 56 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 $389). 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 August 14, 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 August 10, 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 August 14, 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

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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, 24 users have taken a look at flights from Milwaukee-Mitchell to Seattle/Tacoma Intl.

  • 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 $176 and $177, 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 (94%), Air Tahiti Nui (87%), Alaska Airlines( 87%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $937, our data shows the cheapest flight currently is $167. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $174 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 $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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Alternative routes for Milwaukee to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$374FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$176Average$397FlexibilityNo cancel feeOn-time63%
DeltaCheapest$177Average$297FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$222Average$389FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$316FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$400FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$257Average$402FlexibilityNo cancel feeOn-time75%

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