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STL - MKE

Find cheap flights from St. Louis to Milwaukee from $78

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Milwaukee departing on 6/7. 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
0 bags
mié. 6/12
mié. 6/19

Search hundreds of travel sites at once for deals on flights to Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Milwaukee, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Milwaukee, as well as popular online travel agencies
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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

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

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

Cheap flight deals from St. Louis to Milwaukee (STL-MKE)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Milwaukee 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 and deals for you by selecting your travel dates.
Choose your dates
3:30 pm - 9:40 pmSTL-MKE
6h 10m1 stop
5:55 pm - 9:29 pmMKE-STL
3h 34m1 stop
$156Delta
Find Deal
vie., ago. 9 - sáb., ago. 17
5:56 pm - 11:28 pmSTL-MKE
5h 32m1 stop
12:20 pm - 5:01 pmMKE-STL
4h 41m1 stop
$186Delta
Find Deal
vie., jun. 14 - dom., jun. 16
6:06 am - 11:30 amSTL-MKE
5h 24m1 stop
6:31 am - 10:35 amMKE-STL
4h 04m1 stop
$247Delta
Find Deal
jue., jun. 27 - dom., jun. 30
7:00 am - 12:04 pmSTL-MKE
5h 04m1 stop
11:26 am - 5:19 pmMKE-STL
5h 53m1 stop
$251American Airlines
Find Deal
jue., jul. 4 - dom., jul. 7
9:51 am - 12:59 pmSTL-MKE
3h 08m1 stop
6:15 am - 3:35 pmMKE-STL
9h 20m1 stop
$351American Airlines
Find Deal
vie., may. 24 - dom., may. 26
10:15 am - 3:14 pmSTL-MKE
4h 59m1 stop
5:21 pm - 9:47 pmMKE-STL
4h 26m1 stop
$366United Airlines
Find Deal
mié., may. 29 - mié., may. 29
5:30 pm - 1:36 pmSTL-MKE
20h 06m2 stops
11:01 am - 3:40 pmMKE-STL
4h 39m1 stop
$400United Airlines
Find Deal
vie., ago. 9 - sáb., ago. 17
7:00 am - 3:44 pmSTL-MKE
8h 44m2 stops
11:26 am - 5:19 pmMKE-STL
5h 53m1 stop
$404American Airlines
Find Deal
jue., jul. 4 - dom., jul. 7
8:12 pm - 5:36 pmSTL-MKE
21h 24m3 stops
9:07 pm - 1:51 pmMKE-STL
16h 44m1 stop
jue., jun. 27 - dom., jun. 30
8:12 pm - 5:36 pmSTL-MKE
21h 24m3 stops
6:20 pm - 1:51 pmMKE-STL
19h 31m2 stops
jue., jun. 27 - dom., jun. 30

Flights from St. Louis to Milwaukee - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Milwaukee 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 St. Louis to Milwaukee?

The average price of all flights from St. Louis to Milwaukee clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Milwaukee on a Thursday and more expensive on a Sunday. On your return trip to St. Louis, you should consider flying back on a Saturday, and avoid Mondays for better deals.

What is the cheapest month to fly from St. Louis to Milwaukee?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Milwaukee, 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 St. Louis to Milwaukee is February, where tickets cost $159 on average. On the other hand, the most expensive months are April and January, where the average cost of tickets is $545 and $384 respectively.

How far in advance should I book a flight from St. Louis to Milwaukee?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Milwaukee, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Milwaukee, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 44 days before departure.

Which airlines provide the cheapest flights from St. Louis to Milwaukee?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from St. Louis to Milwaukee found on KAYAK was with Delta for $78. Delta proposed a round-trip connection from $156 and American Airlines from $251.

How many flights are there between St. Louis and Milwaukee per day?

Each day, there are between 2 and 4 nonstop flights that take off from St. Louis and land in Milwaukee, with an average flight time of 1h 13m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 25 flights. The most frequent day of departure is Wednesday, when 16% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between St. Louis and Milwaukee?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from St. Louis to Milwaukee?

Early birds can take the earliest flight from St. Louis at 7:50 am and will be landing in Milwaukee at 9:05 am.

What’s the latest departure time from St. Louis to Milwaukee?

If you prefer to fly at night, the latest flight from St. Louis to Milwaukee jets off at 10:40 pm and lands at 11:50 pm.

Good to know

Low season

November

High season

March

Cheapest flight

$78
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Milwaukee

When to book flights from St. Louis to Milwaukee

Are your dates flexible? Find out the best times to travel from St. Louis to Milwaukee 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 St. Louis to Milwaukee

  • What is the cheapest flight from St. Louis to Milwaukee?

    In the last 3 days, the lowest price for a flight from St. Louis to Milwaukee was $78 for a one-way ticket and $156 for a round-trip.

  • Do I need a passport to fly between St. Louis and Milwaukee?

    No, a passport isn't needed to fly from St. Louis to Milwaukee. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from St. Louis to Milwaukee?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Milwaukee, also known as Milwaukee-Mitchell.

  • Which aircraft models fly most regularly from St. Louis to Milwaukee?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Milwaukee flight route.

  • On which days can I fly direct from St. Louis to Milwaukee?

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

  • Which is the best airline for flights from St. Louis to Milwaukee, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Milwaukee are Delta and United Airlines. With an average price for the route of $277 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $326 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Milwaukee?

    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 St. Louis to Milwaukee.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from St. Louis 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 St. Louis to Milwaukee?

    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 Milwaukee with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MKE 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 St. Louis to Milwaukee?

    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 Milwaukee from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from St. Louis to Milwaukee?

Find which airlines fly direct from Lambert-St Louis to Milwaukee-Mitchell, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Milwaukee-Mitchell

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Milwaukee-Mitchell to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 3 airlines serving from St. Louis to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Milwaukee. 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 St. Louis to Milwaukee? 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
DeltaOverall score based on 10736 reviews
7.9Comfort
8.2Boarding
7.4Food
8.0Entertainment
8.6Crew
Airline reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

2.0 MediocreDevan, May 2024AUS - BOS
Read more about Delta reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Book cheap flights from St. Louis to Milwaukee

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Milwaukee found on KAYAK in the last 72 hours.
6/7vie.
1 stopDelta
5h 32mSTL-MKE
$78
7/4jue.
1 stopAmerican Airlines
5h 04mSTL-MKE
$107
6/7vie.
1 stopDelta
5h 24mSTL-MKE
$108
7/27sáb.
1 stopAmerican Airlines
6h 13mSTL-MKE
$143
5/30jue.
2 stops
21h 37mSTL-MKE
$150
6/10lun.
1 stopAmerican Airlines
6h 31mSTL-MKE
$164
5/23jue.
1 stopFrontier
19h 46mSTL-MKE
$179
5/27lun.
3 stopsSpirit Airlines
31h 46mSTL-MKE
$225
7/27sáb.
2 stopsUnited Airlines
13h 11mSTL-MKE
$333
5/27lun.
2 stopsUnited Airlines
17h 29mSTL-MKE
$363

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Last minute flights from St. Louis to Milwaukee

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Milwaukee that are departing in the next 10 days.
5/15mié.
multi-stopDelta
5h 40mSTL-MKE
5/21mar.
multi-stopDelta
6h 22mMKE-STL
$450
5/17vie.
multi-stopAmerican Airlines
7h 42mSTL-MKE
5/19dom.
multi-stopAmerican Airlines
6h 31mMKE-STL
$465
5/17vie.
multi-stop
35h 11mSTL-MKE
5/19dom.
multi-stop
20h 24mMKE-STL
$601
5/17vie.
multi-stop
35h 11mSTL-MKE
5/19dom.
multi-stop
16h 59mMKE-STL
$613
5/17vie.
multi-stopAmerican Airlines
7h 42mSTL-MKE
5/19dom.
multi-stopAmerican Airlines
22h 40mMKE-STL
$777
5/16jue.
multi-stopDelta
3h 57mSTL-MKE
5/21mar.
multi-stopDelta
6h 04mMKE-STL
$838

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St. Louis - Milwaukee Flights

Departure:

St. Louis (undefined)United States

Destination:

Milwaukee (MKE)United States

Return flight deals:

Milwaukee - St. Louis

Cabin classes:

$352