MKE - SEA

$99 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 5/1. 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
$177
Overall average: $313
Alaska Airlines
Tue 4/14Wed 4/22
MKE - SEA • Non-stop
Cheapest one-way
$99
Typical prices: $159-$258
American Airlines
Fri 5/1
MKE - SEA • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $177 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Alaska Airlines. Average duration is 4h 28m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $194 (round-trip)
Minneapolis (MSP)
Shortest trip • 6h 39m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 15% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Tue, Apr 14 - Wed, Apr 22
Alaska Airlines Logo
3:10 pm - 5:38 pm
MKE
-
SEA
4h 28mnonstop
Alaska Airlines Logo
8:05 am - 2:13 pm
SEA
-
MKE
4h 08mnonstop
$177Alaska Airlines
Thu, Apr 16 - Sat, Apr 18
Delta Logo
5:48 pm - 11:54 pm
MKE
-
SEA
8h 06m
1 stop
Delta Logo
6:00 am - 3:17 pm
SEA
-
MKE
7h 17m
1 stop
$197Delta
Fri, Apr 24 - Sun, May 3
Frontier Logo
7:37 pm - 9:27 am
MKE
-
SEA
15h 50m
1 stop
Frontier Logo
6:57 pm - 6:59 pm
SEA
-
MKE
22h 02m
1 stop
$201Frontier
Tue, Apr 21 - Sun, Apr 26
Delta Logo
7:25 am - 2:46 pm
MKE
-
SEA
9h 21m
1 stop
Delta Logo
11:59 pm - 10:13 am
SEA
-
MKE
8h 14m
1 stop
$204Delta
Mon, Apr 13 - Wed, Apr 22
Alaska Airlines Logo
3:10 pm - 5:38 pm
MKE
-
SEA
4h 28mnonstop
Alaska Airlines Logo
8:05 am - 2:13 pm
SEA
-
MKE
4h 08mnonstop
$207Alaska Airlines
Mon, Apr 20 - Thu, Apr 23
Delta Logo
10:53 am - 4:45 pm
MKE
-
SEA
7h 52m
1 stop
Delta Logo
3:35 pm - 10:46 pm
SEA
-
MKE
5h 11m
1 stop
$211Delta
Thu, May 7 - Mon, May 11
Delta Logo
3:59 pm - 8:43 pm
MKE
-
SEA
6h 44m
1 stop
Delta Logo
5:30 am - 4:06 pm
SEA
-
MKE
8h 36m
1 stop
$213Delta
Wed, Apr 8 - Wed, Apr 15
Alaska Airlines Logo
3:10 pm - 5:38 pm
MKE
-
SEA
4h 28mnonstop
Alaska Airlines Logo
8:17 am - 2:14 pm
SEA
-
MKE
3h 57mnonstop
$217Alaska Airlines
Tue, Apr 14 - Sun, Apr 19
Alaska Airlines Logo
3:10 pm - 5:38 pm
MKE
-
SEA
4h 28mnonstop
Alaska Airlines Logo
8:17 am - 2:14 pm
SEA
-
MKE
3h 57mnonstop
$227Alaska Airlines
Fri, Apr 24 - Sun, May 3
American Airlines Logo
5:41 pm - 10:38 pm
MKE
-
SEA
6h 57m
1 stop
American Airlines Logo
11:33 pm - 7:41 am
SEA
-
MKE
6h 08m
1 stop
$232American 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.

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 Tuesday 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 $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 $496 and $417 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 $319 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 3 weeks before departure, which saves you about 26% 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$99
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 20% 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 $99 for a one-way ticket and $177 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, Hawaiian Airlines, Air Canada, 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Milwaukee and Seattle, with Star Alliance 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, 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 $379 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 $365 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 $175 or less one-way and $288 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 11918 reviews
8.5Crew
8.1Boarding
7.0Entertainment
7.8Comfort
7.1Food
Airline reviews

Experience overall was great, we didn’t land upside down like a Delta plane once did. The entertainment section didn’t apply for me, but I put excellent I think anyway.

10.0 ExcellentAnonymous, Feb 2026
ATL - SEA
Read more Alaska Airlines reviews

Experience overall was great, we didn’t land upside down like a Delta plane once did. The entertainment section didn’t apply for me, but I put excellent I think anyway.

Attentive, caring. Loved the communication in the app even before boarding and while on plane from pilots.

The agent changed my seat and upgraded me free. The flights are ALWAYS delayed. We sat there almost an hour while the plane was held for 4 passengers. I was then unable to make my connecting flight. This is why I dont fly alaska unless there are no more flights with delta

The flight was on time and got in early which allowed us to get to our next flight.

The plane not having any overhead bin space was inconvenient. Anytime my luggage has to be checked it ends up covered in scratches and that’s not covered by the airlines for replacement/repair. The WiFi did not work or was not offered for the flight from Seattle to Vancouver.

Most of it was good. The flights were on time. The staff were helpful and friendly. I had a short time connecting flights and they let me deplane first and I made the connection. On the outbound from DTW to SEA I was seated in the middle of two very large people. I am petite and even with my arms crossed they were both hanging over into my seat touching me. The meal had way too much pepper and spice, my lips were burning. Other than those two issues, I was pleased with the service and the trip and will use Alaska Air again.

Wheelchair assistant was on the spot, and very helpful. Gate agent was kind, and made sure I boarded the plane without having to try to hurry with my painful hip. My seat was so comfortable, 20A. I am tall, 5'9 and I need to stretch out my legs due to chronic nerve pain in my back that runs down my right leg, in addition to the bursitis in my right hip. Alaska air has the best economy seating in the market. So much room for legs, elbows, etc. When I arrived in SEA, the next Wheelchair was waiting to take me to the next gate. Great communication.

I had to cancel my trip due to health reasons three days after making the reservation. I was stunned to find out that the ticket was not able to be credited for future travel. $734 loss. Not happy that this was not my experience with Southwest Airlines. I will stick with SW in the future. Boo Alaskan Air and Kayak.

The staff was extremely helpful and accommodating. The only thing I could have done without was the long layover in between flights but I was going to a less popular destination so it was understandable.

All went well, right on time, easy boarding. We ordered the evergreens grain bowl and were surprised and pleased how adequate it was for vegan lunch! Landing was smooth and gate exit was easy

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Waiting for gate in RDU for more than 20mins is crazy.

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

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

Information on your arrival and departure airports