MKE - SEA

$89 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 10/15. 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

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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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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

Thu, Oct 23 - Mon, Oct 27
American Airlines Logo
2:05 pm - 10:56 pmMKE-SEA
10h 51m1 stop
American Airlines Logo
1:30 pm - 12:14 amSEA-MKE
8h 44m1 stop
$194American Airlines
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Sat, Nov 15 - Tue, Dec 2
Delta Logo
7:05 am - 2:45 pmMKE-SEA
9h 40m1 stop
Delta Logo
11:55 pm - 10:18 amSEA-MKE
8h 23m1 stop
$196Delta
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
11:25 am - 7:09 pmMKE-SEA
9h 44m1 stop
American Airlines Logo
12:34 am - 10:18 amSEA-MKE
7h 44m1 stop
$200American Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 21
United Airlines Logo
5:00 am - 9:43 amMKE-SEA
6h 43m1 stop
United Airlines Logo
7:00 am - 5:06 pmSEA-MKE
8h 06m1 stop
$215United Airlines
Find Deal
Mon, Sep 29 - Tue, Oct 7
Delta Logo
4:55 pm - 10:06 pmMKE-SEA
7h 11m1 stop
Delta Logo
11:55 pm - 8:19 amSEA-MKE
6h 24m1 stop
$222Delta
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Wed, Oct 29 - Sun, Nov 2
Alaska Airlines Logo
3:56 pm - 6:25 pmMKE-SEA
4h 29mnonstop
Alaska Airlines Logo
9:09 am - 3:00 pmSEA-MKE
3h 51mnonstop
$229Alaska Airlines
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Wed, Dec 24 - Sun, Dec 28
Alaska Airlines Logo
7:00 am - 9:28 amMKE-SEA
4h 28mnonstop
Alaska Airlines Logo
6:06 pm - 11:59 pmSEA-MKE
3h 53mnonstop
$231Alaska Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
10:55 am - 6:45 pmMKE-SEA
9h 50m2 stops
United Airlines Logo
1:57 pm - 9:56 pmSEA-MKE
5h 59m1 stop
$238United Airlines
Find Deal
Thu, Oct 23 - Sun, Nov 2
Hawaiian Airlines Logo
2:47 pm - 5:10 pmMKE-SEA
4h 23mnonstop
Hawaiian Airlines Logo
9:09 am - 3:00 pmSEA-MKE
3h 51mnonstop
$257Hawaiian Airlines
Find Deal
Thu, Oct 23 - Tue, Oct 28
Hawaiian Airlines Logo
2:47 pm - 5:10 pmMKE-SEA
4h 23mnonstop
Hawaiian Airlines Logo
9:09 am - 3:00 pmSEA-MKE
3h 51mnonstop
$276Hawaiian Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $194 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to Seattle
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When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$194
Typical prices: $267-421
American Airlines
Thu 10/23Mon 10/27
MKE - SEA • 1 stop
Cheapest non-stop
$229
Typical prices: $282-443
Alaska Airlines
Wed 10/29Sun 11/2
MKE - SEA • Non-stop
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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.

Find cheap flights to Seattle
Find cheap flights to Seattle

Planning a trip from Milwaukee to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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 Thursday and more expensive on a Saturday. On your return trip to Milwaukee, you should consider flying back on a Tuesday, and avoid Sundays 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 $295 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $499 and $418 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $330 on average.

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 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$89
Best time to beat the crowds with an average 19% 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 $89 for a one-way ticket and $194 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, Hawaiian Airlines, Delta, and American Airlines 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?

    oneworld is the only airline alliance operating flights between Milwaukee and Seattle.

  • 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, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Milwaukee to Seattle are Alaska Airlines and Southwest. With an average price for the route of $404 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $395 and an overall rating of 8.0.

  • 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 $185 or less one-way and $345 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
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

2.0 MediocreAnonymous, Sep 2025BWI - SEA
Read more Alaska Airlines reviews

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

No Free Wifi and the flight was a tad late.

The plane was clean. They got us to the destination. It was very difficult to hear the announcements at the gate. The person was speaking way too quickly, and the sound system did not carry to all parts of the seating area at the gate. The flight left more than an hour late, which left many of the passengers missing connections.

The flights left both airports on schedule. The flight from Idaho Falls to Seattle was a typical commuter trip. The flight from Seattle to Maui was not good: It was too long for a flight in a single-aisle plane and too cramped. I kept asking myself if I would ever visit Maui again if airlines continue to run this long flight like a typical short commuter flight. I am not looking forward to the trip home.

The chicken salad was very small, the lettuce was wilted and there was no flavor. The hamburger was excellent.

Mid flight we were bothered by a bee. Kind of odd, but a bee allergy made it a bit stressful. Attendants passed by our aisle during service multiple times. Otherwise, it was fine.

5 1/2 hour flight with no food service or options is inexcusable.

Mostly good. Delayed which in my experience so far happens often with Alaska Airlines. Thank you.

Excellent overall, but had to wait 30 months while taxiing. In fact, I’m still on the plane now!

We received a check-in reminder the day before the flight, and it listed the flight at a later time. Correct flight number, same seats, etc. for 3 hours later. I called the airline to confirm and they had no record of the email. The info was wrong, and we would have missed our flight if we'd assumed it was correct. I want to know where/how we received this incorrect info.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

Check in process was terrible. Lady at counter didn’t know what she was doing

First class ticket. They ran out of food and I sat hungry watching the others eat

They we able to seat my companion and I next to each other. Plane’s temperature was very cool. Willl be more prepared on return trip.

All was good and they were able to seat my travel companion next to me. Thank you.

Like the ample leg room. May as well not bother with snacks if it's only a two ounce bag of pretzels. Didn't use the entertainment option. Was there one?

What an amazing flight. I haven’t experienced this level of service in a flight in years. This will be the only way to fly to Hawaii for me in the future.

Kayak sold me a ticket after check in time. Could not check in. Could not get on flight.

Love you guys are so friendly and kind and wonderful

Agents talk too fast over intercom. I know it’s memorized and we’ve all heard it before. Just slow down a little. Stop charging for checked bags. I was pleased to get my bags promptly at each end of my flight.

Everything was great except having to check in at Alaska. That was a surprise and took extra time and effort. Should have been explained somewhere maybe on the HA electronic ticket.

It was clean and the crew was great. I wish the chairs could recline just a little more and you would provide small pillows for people with bad backs. My back is fused and a little support would be great.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

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

Information on your arrival and departure airports

Compare transportation modes for Milwaukee to Seattle

Transportation modeAverage priceAverage duration
Flights$7474h 23m
Trains$57244h 44m

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