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$62+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
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 January, booked 61 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

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 July 11, 2025.

Round-trip from

$229
(Southwest)

One-way from

$62
(Southwest)

Popular in

June

Cheapest in

February

Average price

$400

Good round-trip deal

$341 or less

Good one-way deal

$178 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. 15% potential increase in price ($65 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 July 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 July 11, 2025.

This Southwest deal was found by Cheapflights users on 7/10. 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 8/235:20 pmMKE - SEA
1 stop6h 30mSouthwest
Thu 8/289:20 amSEA - MKE
1 stop9h 40mSouthwest
Deal found 7/10$226
This American Airlines deal was found by Cheapflights users on 7/9. 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 10/165:01 pmMKE - SEA
1 stop8h 03mAmerican Airlines
Sun 10/1912:34 amSEA - MKE
1 stop7h 59mAmerican Airlines
Deal found 7/9$228
This Priceline deal was found by Cheapflights users on 7/10. 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.
Fri 8/87:58 pmMKE - SEA
1 stop6h 36mFrontier
Mon 8/116:25 amSEA - MKE
1 stop10h 48mFrontier
Deal found 7/10$230
This United Airlines deal was found by Cheapflights users on 7/9. 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.
Wed 8/205:00 amMKE - SEA
1 stop6h 43mUnited Airlines
Mon 8/2511:58 pmSEA - MKE
1 stop8h 09mUnited Airlines
Deal found 7/9$235
This Delta deal was found by Cheapflights users on 7/9. 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.
Sat 8/236:05 pmMKE - SEA
1 stop7h 27mDelta
Mon 8/2511:46 amSEA - MKE
2 stops19h 16mDelta
Deal found 7/9$245
This Alaska Airlines deal was found by Cheapflights users on 7/9. 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.
Tue 8/56:30 amMKE - SEA
Nonstop4h 23mAlaska Airlines
Tue 8/126:10 pmSEA - MKE
Nonstop3h 49mAlaska Airlines
Deal found 7/9$267
This Hawaiian Airlines deal was found by Cheapflights users on 7/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:27 amMKE - SEA
Nonstop4h 23mHawaiian Airlines
Wed 9/106:10 pmSEA - MKE
Nonstop3h 52mHawaiian Airlines
Deal found 7/10$276
This FlightHub deal was found by Cheapflights users on 7/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/72:51 pmMKE - SEA
1 stop27h 34mSpirit Airlines
Sun 8/105:30 pmSEA - MKE
1 stop18h 26mSpirit Airlines
Deal found 7/10$293

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 July 11, 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

Sat 8/23

5:20 pm-9:50 pm

1 stop6h 30m

Seattle/Tacoma Intl

Thu 8/28

9:20 am-9:00 pm

1 stop9h 40m

$226

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 10/16

5:01 pm-11:04 pm

1 stop8h 03m

Seattle/Tacoma Intl

Sun 10/19

12:34 am-10:33 am

1 stop7h 59m

$228

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 8/8

7:58 pm-12:34 am

1 stop6h 36m

Seattle/Tacoma Intl

Mon 8/11

6:25 am-7:13 pm

1 stop10h 48m

$230

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 8/20

5:00 am-9:43 am

1 stop6h 43m

Seattle/Tacoma Intl

Mon 8/25

11:54 pm-10:13 am

1 stop8h 19m

$235

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/23

6:05 pm-11:32 pm

1 stop7h 27m

Seattle/Tacoma Intl

Mon 8/25

11:46 am-9:02 am

2 stops19h 16m

$245

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 8/5

6:30 am-8:53 am

Nonstop4h 23m

Seattle/Tacoma Intl

Tue 8/12

6:10 pm-11:59 pm

Nonstop3h 49m

$267

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 9/11

3:20 pm-5:37 pm

Nonstop4h 17m

Seattle/Tacoma Intl

Mon 9/22

6:10 pm-12:02 am

Nonstop3h 52m

$277

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 8/7

2:51 pm-4:25 pm

1 stop27h 34m

Seattle/Tacoma Intl

Sun 8/10

5:30 pm-1:56 pm

1 stop18h 26m

$293

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 9/6

5:05 pm-10:30 pm

1 stop7h 25m

$62

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 9/24

10:34 am-5:29 pm

1 stop8h 55m

$80

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 17 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 June 27, 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 July 11, 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 July 6, 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.

Weekly flight availability from Milwaukee to Seattle

Explore weekly flight availability from Milwaukee to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 11, 2025.

The most flights from MKE to SEA are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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 July 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,952 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,561 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 5 daily flights to Seattle from 8 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, 29 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 Southwest is currently your cheapest option to Seattle, with prices starting at $229. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $231 and $237, respectively. Southwest is 37% 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 Southwest. According to our data, you can fly for as low as $62. Users have also found prices from $80 and $97 on American Airlines 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 (95%), Air Tahiti Nui (93%), Hawaiian Airlines( 92%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $631, our data shows the cheapest flight currently is $145. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $123 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Lynnwood
Renton
Olympia
Shoreline
Puyallup
Cle Elum
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Kent
Chehalis
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Aberdeen
Federal Way
Shelton

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Alternative routes for Milwaukee to Seattle

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Top 8 airlines flying from Milwaukee to Seattle

Discover the top 8 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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$87Average$204FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$137Average$350FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$176Average$400FlexibilityNo cancel feeOn-time63%
DeltaCheapest$179Average$305FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$221Average$402FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$319FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$401FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$258Average$404FlexibilityNo cancel feeOn-time75%

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