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$120+ Cheap flights from Seattle to Milwaukee (SEA - MKE)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MKE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Milwaukee-Mitchell are usually found in February or October, booked 70 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Seattle to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Milwaukee (MKE). 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

$263
(Southwest)

One-way from

$120
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$453

Good round-trip deal

$373 or less

Good one-way deal

$176 or less
From Seattle/Tacoma Intl to Milwaukee-Mitchell
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One-way flight from Seattle/Tacoma Intl to Milwaukee-Mitchell
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Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 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 Seattle/Tacoma Intl to Milwaukee-Mitchell.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Milwaukee-Mitchell.
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Find flight deals from Seattle to Milwaukee

Cheapest flights from Seattle to Milwaukee
Explore the most affordable flight options available from Seattle to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:30 amSEA - MKE
1 stop10h 00mSouthwest
Tue 8/267:00 amMKE - SEA
2 stops10h 20mSouthwest
Deal found 6/11$263
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/911:58 pmSEA - MKE
1 stop8h 14mUnited Airlines
Sun 8/175:15 amMKE - SEA
1 stop6h 35mUnited Airlines
Deal found 6/12$264
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.
Sat 8/235:25 amSEA - MKE
1 stop9h 13mAmerican Airlines
Tue 8/268:05 amMKE - SEA
1 stop8h 10mAmerican Airlines
Deal found 6/11$266
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:10 pmSEA - MKE
Nonstop3h 49mAlaska Airlines
Tue 8/122:50 pmMKE - SEA
Nonstop4h 26mAlaska Airlines
Deal found 6/11$276
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:00 amSEA - MKE
1 stop11h 19mFrontier
Mon 9/158:04 pmMKE - SEA
1 stop6h 27mFrontier
Deal found 6/12$280
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:58 pmSEA - MKE
1 stop19h 58mSpirit Airlines
Fri 7/112:51 pmMKE - SEA
1 stop27h 34mSpirit Airlines
Deal found 6/10$282
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/306:10 pmSEA - MKE
Nonstop3h 49mHawaiian Airlines
Wed 8/66:30 amMKE - SEA
Nonstop4h 23mHawaiian Airlines
Deal found 6/10$295
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.
Wed 7/166:09 pmSEA - MKE
1 stop21h 26mSun Country Air
Sun 7/206:35 pmMKE - SEA
1 stop15h 30mSun Country Air
Deal found 6/11$305
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:48 pmSEA - MKE
1 stop21h 25mMultiple Airlines
Mon 8/112:51 pmMKE - SEA
1 stop27h 34mMultiple Airlines
Deal found 6/9$320
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.
Wed 8/611:50 pmSEA - MKE
1 stop6h 53mDelta
Fri 8/154:53 pmMKE - SEA
1 stop7h 14mDelta
Deal found 6/11$338

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Milwaukee 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 Seattle to Milwaukee that are best for you.

Fly from

Seattle

Fly to

Milwaukee

Route

Depart

Return

Price

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Thu 8/21

6:30 am-6:30 pm

1 stop10h 00m

Milwaukee-Mitchell

Tue 8/26

7:00 am-3:20 pm

2 stops10h 20m

$263

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Sat 8/9

11:58 pm-10:12 am

1 stop8h 14m

Milwaukee-Mitchell

Sun 8/17

5:15 am-9:50 am

1 stop6h 35m

$264

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Sat 8/23

5:25 am-4:38 pm

1 stop9h 13m

Milwaukee-Mitchell

Tue 8/26

8:05 am-2:15 pm

1 stop8h 10m

$266

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 8/6

6:10 pm-11:59 pm

Nonstop3h 49m

Milwaukee-Mitchell

Tue 8/12

2:50 pm-5:16 pm

Nonstop4h 26m

$276

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Tue 7/8

3:58 pm-1:56 pm

1 stop19h 58m

Milwaukee-Mitchell

Fri 7/11

2:51 pm-4:25 pm

1 stop27h 34m

$282

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 7/30

6:10 pm-11:59 pm

Nonstop3h 49m

Milwaukee-Mitchell

Wed 8/6

2:50 pm-5:16 pm

Nonstop4h 26m

$295

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 7/16

6:09 pm-5:35 pm

1 stop21h 26m

Milwaukee-Mitchell

Sun 7/20

6:35 pm-8:05 am

1 stop15h 30m

$305

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Thu 8/7

7:48 pm-7:13 pm

1 stop21h 25m

Milwaukee-Mitchell

Mon 8/11

2:51 pm-4:25 pm

1 stop27h 34m

$320

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Wed 8/6

11:50 pm-8:43 am

1 stop6h 53m

Milwaukee-Mitchell

Fri 8/15

4:53 pm-10:07 pm

1 stop7h 14m

$338

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

Thu 8/7

7:48 pm-7:13 pm

1 stop21h 25m

Milwaukee-Mitchell

Mon 8/11

7:58 pm-12:34 am

1 stop6h 36m

$341

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 Seattle to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Seattle 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 Seattle to Milwaukee

How far ahead should I book a flight from Seattle to Milwaukee?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Milwaukee. Price data was last updated on June 9, 2025.

The price you pay for your flight from Seattle to Milwaukee may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Milwaukee?

Currently, February is the cheapest month in which you can book a flight from Seattle to Milwaukee (average of $280). Flying from Seattle to Milwaukee in June is currently the most expensive (average of $376). 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 SEA to MKE?

Find hourly flight availability from Seattle to Milwaukee. 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.

One of the essential ways to save on airfare from Seattle to Milwaukee is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Milwaukee. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Seattle to Milwaukee flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Milwaukee by month

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

In terms of precipitation, rainfall in Milwaukee ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Milwaukee when rainfall is around 1.4 in.

Temperature in Milwaukee by month

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

If weather is an important factor for your trip to Milwaukee, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. 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 Milwaukee. Reviews last updated June 12, 2025.
To help decide which airline to fly from Seattle to Milwaukee, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Milwaukee. 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 Seattle to Milwaukee?

    If you book a flight from Seattle to Milwaukee, you will be flying from Seattle/Tacoma Intl to Milwaukee-Mitchell. Flights to Milwaukee-Mitchell (MKE) from Seattle/Tacoma Intl (SEA) take 3h 48m for a nonstop flight. There are 2 flights from Seattle/Tacoma Intl to Milwaukee per day from 8 airlines.

  • How popular is this Seattle to Milwaukee flight route?

    Flights from Seattle/Tacoma Intl to Milwaukee-Mitchell have been viewed 3 times in the past calendar month.

  • What are the cheapest airlines flying from Seattle to Milwaukee round-trip?

    Our cheapest airline available from Seattle to Milwaukee is Southwest. Our recent data shows that you can find tickets from as low as $263 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $264 and $266 round-trip. These flights start at 33% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Milwaukee one-way?

    One-way options have recently been found by users for as low as $120 on American Airlines. Other airlines that offer cheap prices include Spirit Airlines from $127 and Southwest from $132 one-way.

  • What are the most reliable airlines from Seattle to Milwaukee?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Milwaukee on time: American Airlines (81%), Alaska Airlines (69%), Air Tahiti Nui (69%).

  • What are the cheapest flights from Seattle to Milwaukee?

    Looking for the cheapest flight from Seattle to Milwaukee? While on average our users pay $564, our data indicates the cheapest price to be $145. The most popular route (Seattle/Tacoma Intl - Milwaukee-Mitchell), is priced around $186.

  • Can I find deals for flights from Seattle to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Seattle to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Milwaukee.

  • Can I find deals for business class flights from Seattle to Milwaukee?

    Yes. Cheapflights offers flight deals from Seattle to Milwaukee 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 Seattle to Milwaukee?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Milwaukee (average of $280). Flying from Seattle to Milwaukee in June is currently the most expensive (average of $376). 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
Mequon
Sheboygan
Oak Creek
Wauwatosa

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Alternative routes for Seattle to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Seattle to Milwaukee

Discover the top 8 airlines that operate flights from Seattle to Milwaukee. 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$116Average$189FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$154Average$380FlexibilityNo cancel feeOn-time83%
DeltaCheapest$189Average$331FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$224Average$375FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$230Average$368FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$237Average$407FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$261Average$421FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$264Average$480FlexibilityNo cancel feeOn-time63%

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