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$90+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MKE
oct. 25 — nov. 11
sáb. 10/25
sáb. 11/1
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 September, booked 67 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 septiembre 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Southwest)

One-way from

$90
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$327

Good round-trip deal

$267 or less

Good one-way deal

$212 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Milwaukee-Mitchell flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Milwaukee-Mitchell flights.
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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. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 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 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 septiembre 25, 2025.

This Southwest deal was found by Cheapflights users on 9/24. 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.
mié. 10/155:50 amSEA - MKE
1 stop7h 40mSouthwest
lun. 10/205:25 pmMKE - SEA
2 stops9h 25mSouthwest
Deal found 9/24$240
This American Airlines deal was found by Cheapflights users on 9/23. 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.
sáb. 11/2212:59 amSEA - MKE
1 stop8h 11mAmerican Airlines
mié. 12/35:00 amMKE - SEA
1 stop9h 38mAmerican Airlines
Deal found 9/23$241
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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.
mar. 11/119:09 amSEA - MKE
Nonstop3h 51mAlaska Airlines
vie. 2/202:36 pmMKE - SEA
Nonstop4h 24mAlaska Airlines
Deal found 9/24$247
This United Airlines deal was found by Cheapflights users on 9/22. 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.
jue. 10/1612:43 pmSEA - MKE
1 stop9h 16mUnited Airlines
dom. 10/195:00 amMKE - SEA
1 stop6h 43mUnited Airlines
Deal found 9/22$249
This United Airlines deal was found by Cheapflights users on 9/24. 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.
mié. 10/87:00 amSEA - MKE
1 stop8h 06mUnited Airlines
sáb. 10/1110:50 amMKE - SEA
1 stop6h 55mUnited Airlines
Deal found 9/24$251
This American Airlines deal was found by Cheapflights users on 9/22. 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.
mié. 10/110:09 amSEA - MKE
1 stop10h 22mAmerican Airlines
sáb. 10/115:25 amMKE - SEA
1 stop6h 24mAmerican Airlines
Deal found 9/22$253
This United Airlines deal was found by Cheapflights users on 9/23. 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.
mar. 10/215:00 amSEA - MKE
1 stop6h 01mUnited Airlines
sáb. 10/2510:55 amMKE - SEA
2 stops9h 50mUnited Airlines
Deal found 9/23$254
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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.
jue. 11/139:09 amSEA - MKE
Nonstop3h 51mAlaska Airlines
lun. 11/173:56 pmMKE - SEA
Nonstop4h 29mAlaska Airlines
Deal found 9/23$257
This American Airlines deal was found by Cheapflights users on 9/24. 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.
sáb. 11/112:59 amSEA - MKE
1 stop6h 16mAmerican Airlines
mié. 11/56:12 amMKE - SEA
1 stop8h 58mAmerican Airlines
Deal found 9/24$259
This American Airlines deal was found by Cheapflights users on 9/24. 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.
mar. 10/2112:34 amSEA - MKE
1 stop7h 44mAmerican Airlines
dom. 10/265:25 amMKE - SEA
1 stop6h 24mAmerican Airlines
Deal found 9/24$262
This American Airlines deal was found by Cheapflights users on 9/24. 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.
jue. 10/232:52 pmSEA - MKE
1 stop7h 04mAmerican Airlines
jue. 10/306:13 amMKE - SEA
1 stop10h 35mAmerican Airlines
Deal found 9/24$263
This American Airlines deal was found by Cheapflights users on 9/24. 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.
mar. 10/1412:34 amSEA - MKE
1 stop7h 44mAmerican Airlines
vie. 10/175:01 pmMKE - SEA
1 stop7h 58mAmerican Airlines
Deal found 9/24$264

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 septiembre 25, 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

sáb. 11/15

9:09 am-3:00 pm

Nonstop3h 51m

Milwaukee-Mitchell

dom. 2/22

2:36 pm-5:00 pm

Nonstop4h 24m

$247

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

jue. 11/20

12:35 pm-10:43 pm

1 stop8h 08m

Milwaukee-Mitchell

dom. 11/23

5:13 pm-10:45 pm

1 stop7h 32m

$254

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

jue. 11/6

5:35 am-2:50 pm

1 stop7h 15m

Milwaukee-Mitchell

dom. 11/9

8:05 pm-12:35 am

1 stop6h 30m

$254

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

mar. 10/21

5:00 am-1:01 pm

1 stop6h 01m

Milwaukee-Mitchell

sáb. 10/25

10:55 am-6:45 pm

2 stops9h 50m

$254

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

jue. 12/4

1:39 pm-9:21 pm

1 stop5h 42m

Milwaukee-Mitchell

mar. 12/9

3:07 pm-8:35 pm

1 stop7h 28m

$267

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

vie. 11/7

11:55 pm-10:11 am

1 stop8h 16m

Milwaukee-Mitchell

dom. 11/9

7:20 am-2:59 pm

1 stop9h 39m

$275

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

mié. 10/22

5:00 am-1:01 pm

1 stop6h 01m

Milwaukee-Mitchell

mié. 10/29

8:44 am-4:15 pm

2 stops9h 31m

$280

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

jue. 10/30

5:00 am-4:10 pm

1 stop9h 10m

Milwaukee-Mitchell

mar. 11/4

6:20 am-2:25 pm

2 stops10h 05m

$299

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

mié. 12/24

12:59 am-10:23 am

1 stop7h 24m

Milwaukee-Mitchell

dom. 1/4

5:49 pm-11:29 pm

1 stop7h 40m

$308

SeattleMilwaukee

SEA - MKE

SEAMKE

Seattle/Tacoma Intl

jue. 12/18

10:56 am-5:27 pm

1 stop28h 31m

Milwaukee-Mitchell

vie. 12/26

6:30 pm-10:48 pm

1 stop6h 18m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 21 results
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Compare providers for flights from Seattle to Milwaukee

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 Seattle to Milwaukee 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

*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 Seattle-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Milwaukee 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 Seattle-Milwaukee 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 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 September 19, 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 67 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 septiembre 25, 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 September 21, 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.

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 septiembre 25, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Milwaukee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,750 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 50m for a nonstop flight. There are 7 flights from Seattle/Tacoma Intl to Milwaukee per day from 6 airlines.

  • How popular is this Seattle to Milwaukee flight route?

    Flights from Seattle/Tacoma Intl to Milwaukee-Mitchell have been viewed 2 times in the past calendar month.

  • How long is the flight from Seattle to Milwaukee?

    Alaska Airlines, United Airlines, and Southwest can get you from Seattle to Milwaukee in just under 3h 51m. Your travel time can differ by up to 4h 17m. There are 1689 mi between Seattle and Milwaukee. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $178 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $196 and $198 round-trip. These flights start at 54% lower than the current average price 3 months from now.

  • 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 (80%), Alaska Airlines (80%), Hawaiian Airlines (80%).

  • What are the cheapest flights from Seattle to Milwaukee?

    Looking for the cheapest flight from Seattle to Milwaukee? While on average our users pay $305, our data indicates the cheapest price to be $148. The most popular route (Seattle/Tacoma Intl - Milwaukee-Mitchell), is priced around $194.

  • 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Oak Creek
New Berlin
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 6 airlines flying from Seattle to Milwaukee

Discover the top 6 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 septiembre 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$178Average$407FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$329FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$368FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$345FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$237Average$376FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$257Average$428FlexibilityNo cancel feeOn-time75%

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