MKE - SEA

$162 Find Cheap Flights from Milwaukee to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to Seattle departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to Seattle.
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Everything you should know

Cheapest round-trip
$332
Typical prices: $407-$283
United Airlines
ד' 9/23ד' 9/30
MKE - SEA • 2 stops
Cheapest non-stop
$417
Typical prices: $561-$352
Alaska Airlines
ו' 6/26ה' 7/2
MKE - SEA • Non-stop
Top airlines
Cheapest • from $332 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 4h 27m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $194 (round-trip)
Shortest trip • 6h 42m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Milwaukee to Seattle (MKE-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Milwaukee to Seattle

ד', ספט' 23 - ד', ספט' 30
United Airlines Logo
5:00 am - 3:43 pm
MKE
-
SEA
12h 43m
2 stops
United Airlines Logo
5:00 am - 1:26 pm
SEA
-
MKE
6h 26m
1 stop
$332United Airlines
ג', ספט' 15 - ד', ספט' 23
Southwest Logo
3:40 pm - 11:05 pm
MKE
-
SEA
9h 25m
2 stops
Southwest Logo
11:05 pm - 11:55 am
SEA
-
MKE
10h 50m
2 stops
$333Southwest
ג', ספט' 8 - ו', ספט' 11
Southwest Logo
4:25 pm - 11:05 pm
MKE
-
SEA
8h 40m
2 stops
Southwest Logo
9:20 am - 9:25 pm
SEA
-
MKE
10h 05m
2 stops
$334Southwest
ד', ספט' 23 - ד', ספט' 30
United Airlines Logo
5:00 am - 11:44 am
MKE
-
SEA
8h 44m
2 stops
United Airlines Logo
10:55 am - 10:59 pm
SEA
-
MKE
10h 04m
2 stops
$337United Airlines
ד', אוג' 19 - ב', אוג' 24
Southwest Logo
4:25 pm - 11:05 pm
MKE
-
SEA
8h 40m
2 stops
Southwest Logo
11:00 pm - 9:50 am
SEA
-
MKE
8h 50m
1 stop
$341Southwest
ד', אוג' 19 - א', אוג' 23
Southwest Logo
5:00 pm - 11:25 pm
MKE
-
SEA
8h 25m
1 stop
Southwest Logo
11:00 pm - 10:10 am
SEA
-
MKE
9h 10m
1 stop
$342Southwest
א', אוק' 11 - ש', אוק' 17
United Airlines Logo
5:00 am - 9:36 am
MKE
-
SEA
6h 36m
1 stop
United Airlines Logo
11:13 pm - 10:00 am
SEA
-
MKE
8h 47m
1 stop
$343United Airlines
ג', אוג' 18 - ד', אוג' 26
Southwest Logo
3:40 pm - 11:05 pm
MKE
-
SEA
9h 25m
2 stops
Southwest Logo
5:55 am - 4:40 pm
SEA
-
MKE
8h 45m
2 stops
$346Southwest
ד', אוג' 19 - א', אוג' 23
Southwest Logo
3:40 pm - 11:05 pm
MKE
-
SEA
9h 25m
2 stops
Southwest Logo
11:00 pm - 10:10 am
SEA
-
MKE
9h 10m
1 stop
$348Southwest
ד', יוני 24 - ו', יולי 3
American Airlines Logo
5:00 am - 9:27 am
MKE
-
SEA
6h 27m
1 stop
American Airlines Logo
5:10 am - 5:31 pm
SEA
-
MKE
10h 21m
1 stop
$351American Airlines
Booking Insights

KAYAK's insights & trends for Milwaukee to Seattle flights

Get data-powered insights and trends into flights from Milwaukee to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Milwaukee to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Milwaukee to Seattle departing in September.

What’s the cheapest day of the week to fly from Milwaukee to Seattle?

The average price of all round-trip flights from Milwaukee to Seattle clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Seattle on a Wednesday and more expensive on a Sunday. On your return trip to Milwaukee, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Milwaukee to Seattle is February, where tickets cost $277 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $447 and $397 respectively.

Can I save money by flying with a layover from Milwaukee to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $450, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Milwaukee to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Milwaukee to Seattle, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$162
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Milwaukee to Seattle

When to book flights from Milwaukee to Seattle

Are your dates flexible? Find out the best times to travel from Milwaukee to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Milwaukee to Seattle

  • How can I fly from MKE to SEA?

    American Airlines and Alaska Airlines are two carriers that operate non-stop flights between MKE and SEA. Many airlines operate one-stop flights as well. Some of these include United Airlines, Spirit Airlines, Alaska Airlines, Delta, and American Airlines. Layover cities include Chicago (ORD), Minneapolis (MSP), Denver (DEN), and Las Vegas (LAS).

  • Does MKE have any facilities for nursing mothers?

    Yes. If you are a traveling mom who wishes to breastfeed in private or needs to pump before your flight, you are in luck. MKE has Mamava pods in three of the terminals. A Mamava pod is a freestanding lactation suite made of Corian and fiberglass. Inside the 4x8 unit, you will find two benches, a shelf, a mirror, a coat hook, an exhaust fan, motion-activated lighting, and an appropriately placed power outlet. These nursing suites can be found across from the Miller Brew House in the Main Terminal, at Bronzeville on Concourse C, and near the Children's Play Area on Concourse D.

  • Does MKE have a USO?

    Yes. There is a USO lounge at MKE before security in the Main Terminal. This lounge welcomes any active-duty member of the US military who is traveling. Open from 8 am to 8 pm on Monday and Tuesday and from 8 am to 6 pm on Wednesday thru Sunday, this USO offers TV, comfortable seating, computers, and beverages and snacks.

  • How do I get from SEA into downtown Seattle?

    At SEA, take a short walk to the fourth floor of the parking garage where you will find the Light Rail Station. Here you can take the Light Rail #1 and you can alight at various locations throughout Seattle. This trip takes approximately 40min.

  • What is the cheapest flight from Milwaukee to Seattle?

    In the last 3 days, the lowest price for a flight from Milwaukee to Seattle was $162 for a one-way ticket and $332 for a round-trip.

  • Do I need a passport to fly between Milwaukee and Seattle?

    No

  • Which airports will I be using when flying from Milwaukee to Seattle?

    On your way to Seattle, you’ll fly out from Milwaukee-Mitchell. You’ll be landing at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Milwaukee to Seattle?

    Alaska Airlines, Delta, American Airlines, Hawaiian Airlines, and Air Canada offer inflight Wi-Fi service on the Milwaukee to Seattle flight route.

  • Which aircraft models fly most regularly from Milwaukee to Seattle?

    The Boeing 737 is the aircraft model that flies most regularly on the Milwaukee to Seattle flight route.

  • Which airline alliances offer flights from Milwaukee to Seattle?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Milwaukee and Seattle, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Milwaukee to Seattle?

    There are nonstop flights from Milwaukee to Seattle on a daily basis.

  • Which is the best airline for flights from Milwaukee to Seattle, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Milwaukee to Seattle are Southwest and Alaska Airlines. With an average price for the route of $348 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $373 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Milwaukee to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Milwaukee to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Milwaukee to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Milwaukee is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Milwaukee to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Milwaukee to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Milwaukee to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $250 or less one-way and $447 or less round-trip.
  • Seattle-Tacoma International Airport (SEA) is a hub for Delta Airlines and Alaska Airlines. Milwaukee Mitchell International Airport (MKE) does not serve as a hub for any commercial airlines.
  • Every terminal of MKE has an indoor playground where children can entertain themselves and wear themselves out before a flight. Each of these play areas has soft airplanes that are safe and easy to climb on, small tunnels, and slides.
  • At MKE, you will find restrooms that have adult changing facilities. These accommodations are for adults and their caregivers and provide height-adjustable, adult-sized changing tables. These facilities can be found in the public restrooms in the Main Terminal and Concourse D.
  • If your muscles are sore or weary when you land at SEA, consider visiting a spa at the airport. At the Spa Terminal Gateway, you can ease the kinks out of your neck, back, and legs, or receive another relaxation treatment before you head into Seattle.
  • SEA provides relief areas for pets and service animals both inside and outside the terminals. Inside the terminals, you can find relief areas at Concourse D, Concourse S, Concourse N, the Central Terminal, and the International Arrivals Facility. Outside the terminal, there are pet relief areas on the north end by Alaska Airlines ticketing, on the north end by Alaska Airlines baggage claim, on the south end near the baggage claim past carousel one, and near the parking garage outside the first level near the blue elevators.

Prefer to fly direct from Milwaukee to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Milwaukee-Mitchell to Seattle/Tacoma Intl.
Find which airlines fly direct from Milwaukee-Mitchell Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Milwaukee-Mitchell to Seattle/Tacoma Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Seattle/Tacoma Intl to Milwaukee-Mitchell

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top 5 airlines serving from Milwaukee to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Milwaukee to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4261 reviews
7.0Food
7.5Entertainment
8.1Boarding
8.6Crew
8.0Comfort
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

It was efficient and great. DIA took a while to let us leave but other than that it was great.

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

The flight had a delay but I made it to my connection. Flight was smooth overall

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Everything you need to know for your flight from Milwaukee to Seattle

Information on your arrival and departure airports