Seattle

$144+ Cheap flights from Milwaukee to Seattle (MKE - SEA)

MKE — SEA
Dec 11 — Dec 181
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Milwaukee to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Milwaukee-Mitchell to Seattle/Tacoma Intl are usually found in February or January, booked 43 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from Milwaukee to Seattle

Cheapest flights from Milwaukee to Seattle

Tue 12/812:15 pm -
1 stop8h 31m
Tue 12/1511:33 pm -
1 stop8h 41m
Deal found 11/10$327
Wed 12/234:27 pm -
Nonstop4h 46m
Tue 12/296:08 pm -
Nonstop3h 51m
Deal found 11/10$387
Tue 12/224:27 pm -
Nonstop4h 46m
Sun 12/276:08 pm -
Nonstop3h 51m
Deal found 11/10$397
Thu 12/104:25 pm -
Nonstop4h 39m
Mon 12/149:38 am -
Nonstop3h 49m
Deal found 11/10$407
Sat 12/1210:38 am -
2 stops9h 50m
Sat 12/192:26 pm -
1 stop6h 45m
Deal found 11/6$412
Thu 12/241:10 pm -
1 stop7h 35m
Sat 12/2611:59 pm -
1 stop8h 15m
Deal found 11/6$417
Wed 12/912:45 pm -
2 stops11h 35m
Thu 12/1011:20 am -
1 stop8h 55m
Deal found 11/7$422
Wed 12/912:45 pm -
1 stop7h 05m
Wed 12/165:40 am -
1 stop9h 35m
Deal found 11/11$423
Thu 12/107:00 am -
1 stop6h 44m
Sun 12/137:00 am -
1 stop6h 03m
Deal found 11/8$427
Wed 12/97:00 am -
1 stop10h 03m
Sat 12/1211:15 am -
1 stop8h 37m
Deal found 11/10$428

Find flight deals from Milwaukee to Seattle

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$287
(United Airlines)

One-way from

$204
(Southwest)

Popular in

June

Cheapest in

February

Average price

$402

Good round-trip deal

$429 or less

Good one-way deal

$192 or less
Provider with most accurate pricing for Milwaukee-Mitchell-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Seattle/Tacoma Intl flights.
From Milwaukee-Mitchell to Seattle/Tacoma Intl
One-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl
Highest demand for flights based on searches. 11% potential increase in price ($51 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from Milwaukee-Mitchell to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Milwaukee-Mitchell to Seattle/Tacoma Intl.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Milwaukee to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 1/5

7:05 am-2:50 pm

1 stop9h 45m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$144
Quickest round-trip

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 1/6

7:05 am-12:26 pm

1 stop7h 21m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$144

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Sat 12/12

8:30 am-4:18 pm

1 stop9h 48m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$204

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 12/15

10:55 am-5:10 pm

1 stop8h 15m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$204

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Sat 12/12

11:55 am-8:30 pm

2 stops10h 35m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$209

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 12/15

9:15 am-6:24 pm

2 stops11h 09m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$209

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 1/6

7:39 am-9:02 pm

2 stops15h 23m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$209

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 12/2

9:15 am-4:18 pm

1 stop9h 03m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$215

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Tue 12/1

5:35 pm-11:53 pm

1 stop8h 18m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$215

MilwaukeeSeattle

MKE Milwaukee-Mitchell - SEA Seattle/Tacoma Intl

MKESEA

Milwaukee-Mitchell

Wed 12/2

12:45 pm-10:20 pm

2 stops11h 35m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Milwaukee to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Seattle in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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 Milwaukee-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-Seattle 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 Milwaukee-Seattle 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 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

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?

To ensure you get the cheapest price possible for a flight from Milwaukee to Seattle, you should look to book at least 42 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, February is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $247). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $464). 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?

When flying from Milwaukee to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Milwaukee to Seattle?

Airfare is below average for this route at the moment.

Milwaukee to Seattle flights typically cost between $337 and $487 in December.
The cheapest round-trip price found within the last 5 days was $287 on United Airlines (Dec 7-Dec 11).

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta 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.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • 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 is 1 daily flight to Seattle from 5 different airlines. 4h 28m 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?

  • How long is the flight from Milwaukee to Seattle?

    United Airlines can get you from Milwaukee to Seattle in just under 11h 55m. Your travel time can differ by up to . Milwaukee and Seattle are separated by a distance of 1689 mi.

  • 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 $107. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and American Airlines, with the lowest prices starting at $200 and $216, respectively. Delta is 72% 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 American Airlines. According to our data, you can fly for as low as $102. Users have also found prices from $105 and $118 on Delta and United 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: American Airlines (96%), Qatar Airways (96%), Alaska Airlines( 96%).

  • What are the cheapest flights from Milwaukee to Seattle?

    While on average a flight from Milwaukee to Seattle is generally $400, our data shows the cheapest flight currently is $113. When looking at the most popular route, (Milwaukee-Mitchell - Seattle/Tacoma Intl), you can expect to pay $327 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, February is the cheapest month in which you can book a flight from Milwaukee to Seattle (average of $247). Flying from Milwaukee to Seattle in June is currently the most expensive (average of $464). 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
Renton
Lacey
Leavenworth
Tacoma
Tukwila
Snoqualmie
Puyallup
Lynnwood
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Olympia
Centralia
Lakewood
Poulsbo
Marysville
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Milwaukee to Seattle

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$107Average$344FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$200Average$418FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$216Average$417FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$407FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$417FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.