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 41% 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 offers the lowest fares from Milwaukee to Seattle?

Flights via Chicago (ORD) offer the lowest average round-trip price of $262.

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

Chicago (ORD) has the shortest average layover time for this route: 1h 46m.

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

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

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

8 flights are operational daily from Milwaukee to Seattle as of July 2025. The most popular departure time for this route is 6:00AM, with 57% of flights per day taking off at noon.

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.

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

The number of flights available between Milwaukee and Seattle is 61 per week as of July 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.

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 00m.

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 July 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.

$98 Cheap Flights from Milwaukee to Seattle in 2025

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Find the cheapest flights from Milwaukee to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:49 pm - 11:43 pmMKE-SEA

7h 54m1 stop

6:00 am - 3:11 pmSEA-MKE

7h 11m1 stop

$195Delta

Find Deal

Thu, Sep 11 - Wed, Sep 17

5:20 pm - 9:50 pmMKE-SEA

6h 30m1 stop

8:10 am - 10:40 pmSEA-MKE

12h 30m1 stop

$200Southwest

Find Deal

Sat, Sep 6 - Sat, Sep 13

6:27 am - 8:50 amMKE-SEA

4h 23mnonstop

6:10 pm - 12:02 amSEA-MKE

3h 52mnonstop

$215Alaska Airlines

Find Deal

Sat, Sep 6 - Sat, Sep 13

5:00 am - 9:43 amMKE-SEA

6h 43m1 stop

11:54 pm - 10:13 amSEA-MKE

8h 19m1 stop

$217United Airlines

Find Deal

Tue, Aug 26 - Tue, Sep 2

5:00 am - 12:40 pmMKE-SEA

9h 40m1 stop

12:59 am - 11:20 amSEA-MKE

8h 21m1 stop

$224American Airlines

Find Deal

Wed, Nov 12 - Tue, Nov 18

6:30 am - 8:50 amMKE-SEA

4h 20mnonstop

6:10 pm - 12:02 amSEA-MKE

3h 52mnonstop

$237Hawaiian Airlines

Find Deal

Sat, Aug 30 - Wed, Sep 3

1:06 pm - 8:19 pmMKE-SEA

9h 13m1 stop

5:26 am - 4:47 pmSEA-MKE

9h 21m1 stop

$246American Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

6:27 am - 8:50 amMKE-SEA

4h 23mnonstop

6:10 pm - 12:02 amSEA-MKE

3h 52mnonstop

$247Hawaiian Airlines

Find Deal

Fri, Sep 5 - Wed, Sep 10

5:45 pm - 10:20 pmMKE-SEA

6h 35m1 stop

11:54 pm - 10:13 amSEA-MKE

8h 19m1 stop

$248United Airlines

Find Deal

Sat, Aug 30 - Tue, Sep 2

6:30 am - 8:50 amMKE-SEA

4h 20mnonstop

6:10 pm - 11:59 pmSEA-MKE

3h 49mnonstop

$276Alaska Airlines

Find Deal

Mon, Aug 25 - Sun, Aug 31

Frontier flights from Milwaukee to Seattle

Our best Frontier deals on Milwaukee to Seattle flight tickets

Frontier

Aug 25

MKE8:02 pmMilwaukee-Mitchell

6h 32m

1 stop

SEA12:34 amSeattle/Tacoma Intl

Aug 30

SEA12:40 pmSeattle/Tacoma Intl

28h 32m

1 stop

MKE7:12 pmMilwaukee-Mitchell

$258

Find similar

Frontier

Aug 11

MKE7:58 pmMilwaukee-Mitchell

6h 36m

1 stop

SEA12:34 amSeattle/Tacoma Intl

Aug 17

SEA7:48 pmSeattle/Tacoma Intl

21h 25m

1 stop

MKE7:13 pmMilwaukee-Mitchell

$491

Find similar

Alaska Airlines flights from Milwaukee to Seattle

Our best Alaska Airlines deals on Milwaukee to Seattle flight tickets

Alaska Airlines

Sep 6

MKE6:27 amMilwaukee-Mitchell

4h 23m

SEA8:50 amSeattle/Tacoma Intl

Sep 13

SEA6:10 pmSeattle/Tacoma Intl

3h 52m

MKE12:02 amMilwaukee-Mitchell

$215

Find similar

Alaska Airlines

Aug 25

MKE6:30 amMilwaukee-Mitchell

4h 20m

SEA8:50 amSeattle/Tacoma Intl

Aug 31

SEA6:10 pmSeattle/Tacoma Intl

3h 49m

MKE11:59 pmMilwaukee-Mitchell

$276

Find similar

Alaska Airlines

Aug 26

MKE6:30 amMilwaukee-Mitchell

4h 20m

SEA8:50 amSeattle/Tacoma Intl

Aug 28

SEA6:10 pmSeattle/Tacoma Intl

3h 49m

MKE11:59 pmMilwaukee-Mitchell

$287

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Thu 9/11

5:49 pm-11:43 pm

1 stop7h 54m

Seattle/Tacoma Intl

Wed 9/17

6:00 am-3:11 pm

1 stop7h 11m

$195

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 9/6

5:20 pm-9:50 pm

1 stop6h 30m

Seattle/Tacoma Intl

Sat 9/13

8:10 am-10:40 pm

1 stop12h 30m

$200

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 9/6

6:27 am-8:50 am

Nonstop4h 23m

Seattle/Tacoma Intl

Sat 9/13

6:10 pm-12:02 am

Nonstop3h 52m

$215

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Tue 8/26

5:00 am-9:43 am

1 stop6h 43m

Seattle/Tacoma Intl

Tue 9/2

11:54 pm-10:13 am

1 stop8h 19m

$217

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 11/12

5:00 am-12:40 pm

1 stop9h 40m

Seattle/Tacoma Intl

Tue 11/18

12:59 am-11:20 am

1 stop8h 21m

$224

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/30

6:30 am-8:50 am

Nonstop4h 20m

Seattle/Tacoma Intl

Wed 9/3

6:10 pm-12:02 am

Nonstop3h 52m

$237

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Wed 8/27

1:06 pm-8:19 pm

1 stop9h 13m

Seattle/Tacoma Intl

Wed 9/3

5:26 am-4:47 pm

1 stop9h 21m

$246

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Fri 9/5

6:27 am-8:50 am

Nonstop4h 23m

Seattle/Tacoma Intl

Wed 9/10

6:10 pm-12:02 am

Nonstop3h 52m

$247

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Sat 8/30

5:45 pm-10:20 pm

1 stop6h 35m

Seattle/Tacoma Intl

Tue 9/2

11:54 pm-10:13 am

1 stop8h 19m

$248

MilwaukeeSeattle

MKE - SEA

MKESEA

Milwaukee-Mitchell

Mon 8/25

6:30 am-8:50 am

Nonstop4h 20m

Seattle/Tacoma Intl

Sun 8/31

6:10 pm-11:59 pm

Nonstop3h 49m

$276

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 cheapest month to fly to Seattle?

In general, September 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 $306. If you don’t want to visit Seattle in September, then you should wait until February to fly from Milwaukee, when ticket prices are also cheap, with an average price of $307.

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 $429. 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 $537.

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 $496. 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 $367 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 $341 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 19% 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 July 2025, prices for Milwaukee to Seattle flights are approximately 29% cheaper 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	$98
Fastest flight time	4h 17m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Milwaukee in the past 72 hours is $98. The best round-trip flight deal from Milwaukee to Seattle found on momondo in the last 72 hours is $195.

The fastest flight from Milwaukee to Seattle takes 4h 17m

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 17m.
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 July 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 (31.06% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (23.86%), Boeing 737 MAX 9 (19.82%), and Boeing 737-900 Passenger/BBJ3 (winglets) (9.91%).
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 57% of the total bookings. Other popular airlines include Delta with 13%, American Airlines with 13%, and Hawaiian Airlines with 8%.

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 6.9 334 reviews	Search Sun Country Air flights
Southwest	PriceFrom $176	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Delta	PriceFrom $177	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $221	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $257	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Alaska Airlines Flights From Milwaukee to Seattle
Alaska Airlines is one of the most popular airlines flying from Milwaukee to Seattle, operating 10 flights/week on average for this route. A good Alaska Airlines flight deal for Milwaukee to Seattle starts from $257 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, 2,611 ratings). Hawaiian Airlines flies from Milwaukee to Seattle around 15 times per week, with deals starting from $257 round-trip and rising to an average price of around $399.

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Renton

Kent

Federal Way

Puyallup

Lynnwood

Marysville

Tukwila

Kirkland

Lakewood

Fife

Centralia

Cle Elum

Shoreline

Westport

Redmond

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 $98

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 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Milwaukee to Seattle

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

Frontier flights from Milwaukee to Seattle

Our best Frontier deals on Milwaukee to Seattle flight tickets

Alaska Airlines flights from Milwaukee to Seattle

Our best Alaska Airlines deals on Milwaukee to Seattle flight tickets

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

See travel insights to Seattle from

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 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 19% 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 July 2025, prices for Milwaukee to Seattle flights are approximately 29% cheaper when compared to flights at the same time last year.

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

Delta, Southwest, and American Airlines 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 $262.

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 00m.

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

Chicago (ORD) has the shortest average layover time for this route: 1h 46m.

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

8 flights are operational daily from Milwaukee to Seattle as of July 2025. The most popular departure time for this route is 6:00AM, with 57% of flights per day taking off at noon.

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

The number of flights available between Milwaukee and Seattle is 61 per week as of July 2025. The most frequent departure day is Wed, with 18% 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