What is the cheapest airline that flies from Milwaukee-Mitchell to Seattle/Tacoma Intl?

American Airlines, United Airlines, and Southwest are the most popular carriers operating from Milwaukee-Mitchell to Seattle/Tacoma Intl

How many flights depart from Milwaukee to Seattle on average per week?

The number of flights available between Milwaukee and Seattle is 5 per week as of November 2025. The most frequent departure day is Sat, with 80% of weekly flights leaving on this day.

What airlines fly to Seattle?

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Seattle from Milwaukee according to our data. Alaska Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 9 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Milwaukee to Seattle?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 13m.

Which layover airport offers the lowest fares from Milwaukee to Seattle?

Flights via Chicago (ORD) offer the lowest average round-trip price of $252.

Which layover airport has the shortest connection time from Milwaukee to Seattle?

Dallas (DFW) has the shortest average layover time for this route: 1h 56m.

Which airport is the most popular layover for flights between Milwaukee and Seattle?

Chicago (ORD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport is 7 as of November 2025.

How old do you have to be to fly from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$90 Cheap Flights from Milwaukee to Seattle in 2025/26

Q: What is the typical price of a round-trip flight between Milwaukee and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $237 to $453. The lowest price recently found on this route was $215.

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7:20 am - 2:59 pmMKE-SEA

9h 39m1 stop

11:55 pm - 8:15 amSEA-MKE

6h 20m1 stop

$215Delta

Find Deal

Sat, Nov 22 - Mon, Nov 24

3:15 pm - 11:15 pmMKE-SEA

10h 00m2 stops

1:40 pm - 9:47 pmSEA-MKE

6h 07m1 stop

$220United Airlines

Find Deal

Sat, Dec 6 - Sun, Dec 7

5:00 am - 12:38 pmMKE-SEA

9h 38m1 stop

5:18 am - 5:01 pmSEA-MKE

9h 43m1 stop

$223American Airlines

Find Deal

Wed, Dec 10 - Wed, Dec 17

3:05 pm - 5:31 pmMKE-SEA

4h 26mnonstop

6:06 pm - 11:59 pmSEA-MKE

3h 53mnonstop

$225Alaska Airlines

Find Deal

Sat, Dec 20 - Sun, Jan 4

3:05 pm - 5:31 pmMKE-SEA

4h 26mnonstop

6:06 pm - 11:59 pmSEA-MKE

3h 53mnonstop

$227Alaska Airlines

Find Deal

Sat, Dec 20 - Sun, Jan 4

6:55 am - 2:21 pmMKE-SEA

9h 26m1 stop

6:05 am - 4:16 pmSEA-MKE

8h 11m1 stop

$231Delta

Find Deal

Thu, Jan 22 - Mon, Jan 26

3:36 pm - 11:18 pmMKE-SEA

9h 42m1 stop

12:59 am - 11:38 amSEA-MKE

8h 39m1 stop

$250American Airlines

Find Deal

Thu, Nov 13 - Thu, Nov 13

8:05 pm - 12:35 amMKE-SEA

6h 30m1 stop

5:15 am - 4:10 pmSEA-MKE

8h 55m1 stop

$251Southwest

Find Deal

Mon, Jan 5 - Tue, Jan 6

6:20 am - 2:25 pmMKE-SEA

10h 05m2 stops

5:15 am - 8:35 pmSEA-MKE

13h 20m1 stop

$255Southwest

Find Deal

Wed, Dec 3 - Fri, Dec 5

6:27 pm - 10:48 pmMKE-SEA

6h 21m1 stop

6:16 pm - 5:57 pmSEA-MKE

21h 41m1 stop

$275Sun Country Air

Find Deal

Fri, Dec 19 - Fri, Jan 2

Delta flights from Milwaukee to Seattle

Our best Delta deals on Milwaukee to Seattle flight tickets

Delta

Nov 22

MKE7:20 amMilwaukee-Mitchell

9h 39m

1 stop

SEA2:59 pmSeattle/Tacoma Intl

Nov 24

SEA11:55 pmSeattle/Tacoma Intl

6h 20m

1 stop

MKE8:15 amMilwaukee-Mitchell

$215

Find similar

Delta

Jan 22

MKE6:55 amMilwaukee-Mitchell

9h 26m

1 stop

SEA2:21 pmSeattle/Tacoma Intl

Jan 26

SEA6:05 amSeattle/Tacoma Intl

8h 11m

1 stop

MKE4:16 pmMilwaukee-Mitchell

$231

Find similar

Delta

Nov 19

MKE7:20 amMilwaukee-Mitchell

9h 39m

1 stop

SEA2:59 pmSeattle/Tacoma Intl

Nov 24

SEA11:55 pmSeattle/Tacoma Intl

6h 20m

1 stop

MKE8:15 amMilwaukee-Mitchell

$243

Find similar

United Airlines flights from Milwaukee to Seattle

Our best United Airlines deals on Milwaukee to Seattle flight tickets

United Airlines

Dec 6

MKE3:15 pmMilwaukee-Mitchell

10h 00m

2 stops

SEA11:15 pmSeattle/Tacoma Intl

Dec 7

SEA1:40 pmSeattle/Tacoma Intl

6h 07m

1 stop

MKE9:47 pmMilwaukee-Mitchell

$220

Find similar

United Airlines

Dec 27

MKE7:08 amMilwaukee-Mitchell

6h 55m

1 stop

SEA12:03 pmSeattle/Tacoma Intl

Jan 5

SEA1:55 pmSeattle/Tacoma Intl

6h 20m

1 stop

MKE10:15 pmMilwaukee-Mitchell

$247

Find similar

United Airlines

Dec 20

MKE5:42 pmMilwaukee-Mitchell

7h 05m

1 stop

SEA10:47 pmSeattle/Tacoma Intl

Dec 26

SEA7:00 amSeattle/Tacoma Intl

8h 07m

1 stop

MKE5:07 pmMilwaukee-Mitchell

$249

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 11/22

7:20 am-2:59 pm

1 stop9h 39m

Seattle/Tacoma Intl

Mon 11/24

11:55 pm-8:15 am

1 stop6h 20m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 12/6

3:15 pm-11:15 pm

2 stops10h 00m

Seattle/Tacoma Intl

Sun 12/7

1:40 pm-9:47 pm

1 stop6h 07m

$220

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 12/10

5:00 am-12:38 pm

1 stop9h 38m

Seattle/Tacoma Intl

Wed 12/17

5:18 am-5:01 pm

1 stop9h 43m

$223

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 12/20

3:05 pm-5:31 pm

Nonstop4h 26m

Seattle/Tacoma Intl

Sun 1/4

6:06 pm-11:59 pm

Nonstop3h 53m

$225

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 12/20

3:05 pm-5:31 pm

Nonstop4h 26m

Seattle/Tacoma Intl

Sun 1/4

6:06 pm-11:59 pm

Nonstop3h 53m

$227

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 1/22

6:55 am-2:21 pm

1 stop9h 26m

Seattle/Tacoma Intl

Mon 1/26

6:05 am-4:16 pm

1 stop8h 11m

$231

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 11/13

3:36 pm-11:18 pm

1 stop9h 42m

Seattle/Tacoma Intl

Thu 11/13

12:59 am-11:38 am

1 stop8h 39m

$250

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 1/5

8:05 pm-12:35 am

1 stop6h 30m

Seattle/Tacoma Intl

Tue 1/6

5:15 am-4:10 pm

1 stop8h 55m

$251

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 12/3

6:20 am-2:25 pm

2 stops10h 05m

Seattle/Tacoma Intl

Fri 12/5

5:15 am-8:35 pm

1 stop13h 20m

$255

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 12/19

6:27 pm-10:48 pm

1 stop6h 21m

Seattle/Tacoma Intl

Fri 1/2

6:16 pm-5:57 pm

1 stop21h 41m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Milwaukee to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Milwaukee and Seattle?

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Milwaukee to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $295. If you don’t want to visit Seattle in February, then you should wait until September to fly from Milwaukee, when ticket prices are also cheap, with an average price of $306.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Milwaukee is on a Thursday. momondo users have found tickets for Thursday departures for as low as $441. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Milwaukee because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $530.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Milwaukee in the evening is the least expensive time of day to depart. momondo users have found prices as low as $269 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $502. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Milwaukee-Mitchell to Seattle/Tacoma Intl flight route?

Fly from Milwaukee-Mitchell to Seattle/Tacoma Intl for the best Milwaukee-Mitchell - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $363 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Milwaukee for as low as $325 on momondo.

What cabin class options are available on Milwaukee-Mitchell to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Milwaukee-Mitchell to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Milwaukee to Seattle flights?

You could potentially save up to 11% on your flight if you consider stops on a Milwaukee to Seattle flight.

How have Milwaukee to Seattle flight prices changed over time?

As of November 2025, prices for Milwaukee to Seattle flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Milwaukee to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Milwaukee to Seattle (MKE to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Seattle

Best Price Found	$229
Fastest flight time	4h 12m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Milwaukee in the past 72 hours is $229. The best round-trip flight deal from Milwaukee to Seattle found on momondo in the last 72 hours is $293.

The fastest flight from Milwaukee to Seattle takes 4h 12m

Direct flights go from Milwaukee to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Milwaukee-Mitchell to Seattle/Tacoma Intl by plane?
Milwaukee-Mitchell and Seattle/Tacoma Intl are 1686.6 mi apart from one another. In terms of flight time, this usually takes a little over 4h 24m.
When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport is 7 as of November 2025.
How old do you have to be to fly from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Milwaukee to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Milwaukee to Seattle is Boeing 737 (33.51% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (18.29%), Boeing 737-800 Passenger/BBJ2 (winglets) (16.56%), and Boeing 737-900 Passenger/BBJ3 (winglets) (13.35%).
What is the most popular airline from Milwaukee to Seattle?
Based on momondo bookings for flights between Milwaukee and Seattle, the leading airline is Alaska Airlines, making up 56% of the total bookings. Other popular airlines include Delta with 12%, American Airlines with 12%, and Hawaiian Airlines with 10%.

Best airlines flying from Milwaukee to Seattle

Compare and see reviews for airlines that fly from Milwaukee to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Sun Country Air	PriceFrom $137	Free Cancellation	Rating 6.9 335 reviews	Search Sun Country Air flights
Southwest	PriceFrom $165	Free Cancellation	Rating 8.0 4,241 reviews	Search Southwest flights
Delta	PriceFrom $178	Free Cancellation	Rating 7.9 7,995 reviews	Search Delta flights
American Airlines	PriceFrom $191	Free Cancellation	Rating 7.2 11,030 reviews	Search American Airlines flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 8,991 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $256	Free Cancellation	Rating 8.0 11,227 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $257	Free Cancellation	Rating 7.8 2,798 reviews	Search Hawaiian Airlines flights

Alaska Airlines Flights From Milwaukee to Seattle
Alaska Airlines is one of the most popular airlines flying from Milwaukee to Seattle, operating 1 flight/week on average for this route. A good Alaska Airlines flight deal for Milwaukee to Seattle starts from $256 round-trip, up to an average price of $402. Our users have rated Alaska Airlines at 8.0/10.
Hawaiian Airlines Flights From Milwaukee to Seattle
Another popular option for Milwaukee to Seattle flights is Hawaiian Airlines (7.8/10, 2,798 ratings). Hawaiian Airlines flies from Milwaukee to Seattle around 1 time per week, with deals starting from $257 round-trip and rising to an average price of around $400.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Federal Way

Lakewood

Cle Elum

Fife

Centralia

Kirkland

Shoreline

Westport

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Milwaukee to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Milwaukee to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Milwaukee with this policy.

How can momondo help me find flights from Milwaukee to Seattle?

Once you have performed a search for Milwaukee to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Milwaukee to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Milwaukee to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Milwaukee to Seattle from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Seattle departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Milwaukee to Seattle

Our best Delta deals on Milwaukee to Seattle flight tickets

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Our best United Airlines deals on Milwaukee to Seattle flight tickets

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How to get the cheapest flight ticket from Milwaukee to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Milwaukee and Seattle?

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Milwaukee-Mitchell to Seattle/Tacoma Intl flight route?

Fly from Milwaukee-Mitchell to Seattle/Tacoma Intl for the best Milwaukee-Mitchell - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Milwaukee-Mitchell to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Milwaukee-Mitchell to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Milwaukee to Seattle flights?

You could potentially save up to 11% on your flight if you consider stops on a Milwaukee to Seattle flight.

How have Milwaukee to Seattle flight prices changed over time?

As of November 2025, prices for Milwaukee to Seattle flights are approximately 26% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Milwaukee-Mitchell to Seattle/Tacoma Intl?

American Airlines, United Airlines, and Southwest are the most popular carriers operating from Milwaukee-Mitchell to Seattle/Tacoma Intl

What airlines fly to Seattle?

Which airport is the most popular layover for flights between Milwaukee and Seattle?

Chicago (ORD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Milwaukee to Seattle?

Flights via Chicago (ORD) offer the lowest average round-trip price of $252.

Which layover airport has the shortest travel time from Milwaukee to Seattle?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 13m.

Which layover airport has the shortest connection time from Milwaukee to Seattle?

Dallas (DFW) has the shortest average layover time for this route: 1h 56m.

How many flights depart from Milwaukee to Seattle on average per week?

The number of flights available between Milwaukee and Seattle is 5 per week as of November 2025. The most frequent departure day is Sat, with 80% of weekly flights leaving on this day.

When to book flights from Milwaukee to Seattle

Cheap Milwaukee to Seattle (MKE to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

How far is Milwaukee-Mitchell to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Milwaukee to Seattle?

What is the most popular airline from Milwaukee to Seattle?

Best airlines flying from Milwaukee to Seattle

Compare and see reviews for airlines that fly from Milwaukee to Seattle with momondo

Alaska Airlines Flights From Milwaukee to Seattle

Hawaiian Airlines Flights From Milwaukee to Seattle

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Seattle?

Can I find flights from Milwaukee to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Milwaukee to Seattle?

I’m not ready to book a flight from Milwaukee to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington