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$148+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 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 June 12, 2025.

Round-trip from

$235
(Delta)

One-way from

$148
(Hawaiian Airlines)

Popular in

June

Cheapest in

February

Average price

$497

Good round-trip deal

$349 or less

Good one-way deal

$199 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 ($69 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 June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 7/14:59 pmMKE - SEA
1 stop7h 23mDelta
Wed 7/911:50 pmSEA - MKE
1 stop6h 53mDelta
Deal found 6/11$235
This Southwest deal was found by Cheapflights users on 6/10. 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.
Fri 9/55:45 amMKE - SEA
1 stop7h 20mSouthwest
Wed 9/106:45 amSEA - MKE
2 stops10h 50mSouthwest
Deal found 6/10$240
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/15:15 amMKE - SEA
1 stop6h 35mUnited Airlines
Thu 7/32:24 pmSEA - MKE
1 stop7h 35mUnited Airlines
Deal found 6/11$242
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/194:56 pmMKE - SEA
1 stop8h 44mAmerican Airlines
Mon 8/2511:30 pmSEA - MKE
1 stop9h 00mAmerican Airlines
Deal found 6/11$246
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:40 amMKE - SEA
1 stop11h 13mSpirit Airlines
Sun 9/74:58 pmSEA - MKE
1 stop10h 31mSpirit Airlines
Deal found 6/10$254
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/173:20 pmMKE - SEA
Nonstop4h 17mHawaiian Airlines
Sat 9/206:10 pmSEA - MKE
Nonstop3h 49mHawaiian Airlines
Deal found 6/12$257
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:30 amMKE - SEA
Nonstop4h 20mAlaska Airlines
Fri 8/296:10 pmSEA - MKE
Nonstop3h 49mAlaska Airlines
Deal found 6/10$295
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:02 pmMKE - SEA
1 stop6h 32mFrontier
Sun 8/316:17 amSEA - MKE
1 stop10h 55mFrontier
Deal found 6/10$301
This Sun Country Air deal was found by Cheapflights users on 6/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:35 pmMKE - SEA
1 stop15h 30mSun Country Air
Wed 7/236:15 pmSEA - MKE
1 stop21h 14mSun Country Air
Deal found 6/11$305
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:40 amMKE - SEA
1 stop11h 13mMultiple Airlines
Wed 9/106:10 pmSEA - MKE
Nonstop3h 49mMultiple Airlines
Deal found 6/11$322

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 12, 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 7/1

4:59 pm-10:22 pm

1 stop7h 23m

Seattle/Tacoma Intl

Wed 7/9

11:50 pm-8:43 am

1 stop6h 53m

$235

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/5

5:45 am-11:05 am

1 stop7h 20m

Seattle/Tacoma Intl

Wed 9/10

6:45 am-7:35 pm

2 stops10h 50m

$240

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 7/1

5:15 am-9:50 am

1 stop6h 35m

Seattle/Tacoma Intl

Thu 7/3

2:24 pm-11:59 pm

1 stop7h 35m

$242

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 8/19

4:56 pm-11:40 pm

1 stop8h 44m

Seattle/Tacoma Intl

Mon 8/25

11:30 pm-10:30 am

1 stop9h 00m

$246

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/5

6:40 am-3:53 pm

1 stop11h 13m

Seattle/Tacoma Intl

Sun 9/7

4:58 pm-5:29 am

1 stop10h 31m

$254

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 9/24

3:20 pm-5:37 pm

Nonstop4h 17m

Seattle/Tacoma Intl

Tue 9/30

6:10 pm-11:59 pm

Nonstop3h 49m

$257

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/5

3:20 pm-5:37 pm

Nonstop4h 17m

Seattle/Tacoma Intl

Wed 9/10

6:10 pm-11:59 pm

Nonstop3h 49m

$276

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 8/4

7:58 pm-12:34 am

1 stop6h 36m

Seattle/Tacoma Intl

Mon 8/11

6:25 am-7:13 pm

1 stop10h 48m

$296

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sun 7/20

6:35 pm-8:05 am

1 stop15h 30m

Seattle/Tacoma Intl

Wed 7/23

6:15 pm-5:29 pm

1 stop21h 14m

$305

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/5

6:40 am-3:53 pm

1 stop11h 13m

Seattle/Tacoma Intl

Wed 9/10

6:10 pm-11:59 pm

Nonstop3h 49m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 20 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 9, 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 July is currently the most expensive (average of $391). 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 12, 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 June 8, 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. Monday at noon 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 June 12, 2025.

The most flights from MKE to SEA are scheduled on a Thursday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Milwaukee to Seattle have to say. 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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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 6 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 Delta is currently your cheapest option to Seattle, with prices starting at $235. Additional round-trip tickets that might be worth considering are offered by Southwest and United Airlines, with the lowest prices starting at $240 and $242, respectively. Delta is 36% 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 Hawaiian Airlines. According to our data, you can fly for as low as $148. Users have also found prices from $149 and $150 on Spirit Airlines and American Airlines, 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%), Hawaiian Airlines (98%), Air Tahiti Nui( 98%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $1,501, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $181 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 July is currently the most expensive (average of $391). 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
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$138Average$235FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$152Average$350FlexibilityNo cancel feeOn-time83%
DeltaCheapest$178Average$309FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$222Average$411FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$313FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$238Average$477FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$257Average$429FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$263Average$400FlexibilityNo cancel feeOn-time75%

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