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.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$332
Typical prices: $399-$270
United Airlines
Wed 9/23Wed 9/30
MKE - SEA • 2 stops
Cheapest non-stop
$417
Typical prices: $587-$348
Alaska Airlines
Wed 6/24Mon 6/29
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
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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

Wed, Sep 23 - Wed, Sep 30
United Airlines Logo
6:00 am - 3:43 pm
MKE
-
SEA
11h 43m
2 stops
United Airlines Logo
11:59 pm - 10:00 am
SEA
-
MKE
8h 01m
1 stop
$332United Airlines
Tue, Sep 15 - Wed, Sep 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
Tue, Aug 4 - Thu, Aug 13
Southwest Logo
7:10 am - 8:15 pm
MKE
-
SEA
15h 05m
2 stops
Southwest Logo
11:00 pm - 10:10 am
SEA
-
MKE
9h 10m
1 stop
$334Southwest
Wed, Sep 16 - Sat, Sep 19
United Airlines Logo
5:00 am - 4:14 pm
MKE
-
SEA
13h 14m
2 stops
United Airlines Logo
5:20 pm - 10:00 am
SEA
-
MKE
14h 40m
2 stops
$337United Airlines
Sat, Aug 15 - Wed, Aug 19
Southwest Logo
5:00 pm - 9:30 pm
MKE
-
SEA
6h 30m
1 stop
Southwest Logo
6:25 am - 6:30 pm
SEA
-
MKE
10h 05m
2 stops
$341Southwest
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
5:50 pm - 10:56 pm
MKE
-
SEA
7h 06m
1 stop
United Airlines Logo
11:13 pm - 7:07 am
SEA
-
MKE
5h 54m
1 stop
$342United Airlines
Tue, Aug 11 - Wed, Aug 19
Southwest Logo
4:25 pm - 11:05 pm
MKE
-
SEA
8h 40m
2 stops
Southwest Logo
7:10 am - 6:30 pm
SEA
-
MKE
9h 20m
2 stops
$346Southwest
Wed, Jul 15 - Wed, Jul 22
Southwest Logo
6:55 pm - 12:35 am
MKE
-
SEA
7h 40m
1 stop
Southwest Logo
10:45 pm - 9:45 am
SEA
-
MKE
9h 00m
1 stop
$349Southwest
Sat, Aug 8 - Thu, Aug 13
Southwest Logo
4:00 pm - 10:55 pm
MKE
-
SEA
8h 55m
1 stop
Southwest Logo
11:00 pm - 10:10 am
SEA
-
MKE
9h 10m
1 stop
$351Southwest
Tue, Aug 4 - Tue, Aug 11
Southwest Logo
7:10 am - 8:15 pm
MKE
-
SEA
15h 05m
2 stops
Southwest Logo
5:55 am - 4:40 pm
SEA
-
MKE
8h 45m
2 stops
$352Southwest
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 5 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 4255 reviews
7.0Food
8.6Crew
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

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.

Flight was delayed and we were left in the plane with planed turned off, took so long to get to destination and luggages were lost. Such a hectic travel

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Flight was delayed, but not be a lot. Crew at the departure gate was friendly. Flight was filled with turbulence, enough to concern my husband. Snacks were delivered to rows in front of us but attendant stopped handing out snacks when she got to our row. Team was efficient but lackadaisical. Usually on board crews are more animated and friendly. No onboard entertainment and no seatback video screens for a six hour flight. Landing was a bit rough. We were told the wrong turnstile for luggage.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

I had ordered breakfast several days prior to the flight. 1) we did not rreceive our breakfast and crew knew nothing about it! We left TPA at 8 a.m. but drink cart did not appear until 10:30 a.m. and did not appear a second time either. Was unaware that Alaskan Air offers no music, flight aware, or movies.

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

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.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

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.

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.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

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.

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

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.

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

Information on your arrival and departure airports